Screen scraping visual basicdela
I'm looking for an expert who can optimize my Google My Business profile for my taxi service, which operates across multiple cities and towns. Key Areas of Focus: - Enhance Customer Reviews: Implement strategies to boost positive reviews a...Enhance Customer Reviews: Implement strategies to boost positive reviews and manage feedback. - Ensure Business Information Accuracy: Regularly update and verify all business details for precision. - Optimize Photos and Media: Improve the quality and relevance of visual content on the profile. Ideal Skills and Experience: - Proven track record in GMB optimization. - Experience with transportation industry profiles preferred. - Strong customer service and public relations background. - Proficient in photography or have access to quality ...
I urgently need a 90-minute high-quality 480i video file, sourced from a digital file, upscaled to 4K UHD or higher with AI. Key Requirements: - Using an...experience in video editing and all current ai video upscaling, with a proven track record of delivering high-quality upscaled videos. Excellent attention to detail is crucial, particularly with regards to improving sharpness and highest resolution. A quick turnaround time is essential as this project is time-sensitive. Do not tell me only that "YOU CAN DO IT" SHOW ME WITH YOUR OWN WORK; SPLIT SCREEN SAMPLES. Send a 20 second sample and I will review and comment. If you show promise, I will pay a fixed amount for additional samples sent for review and more money to do entire film and have it uploaded to cloud.
I'm looking for a bot that can operate on the Target website. The bot's primary focus should be on toys, specifically hot items that are in high demand. Once an item is back in stock, the bot needs to check out that item instantly. Ideal skills and experience for the job: - Proficient in web scraping and automation - Prior experience with e-commerce bots - Understanding of the Target website's architecture - Knowledge of toy trends and hot items
...Scope of Work Improved Layout Modernize the website’s design to enhance visual appeal and usability. Ensure the site is fully responsive and performs well on all devices (desktop, tablet, mobile). Focus on clear navigation, clean visuals, and improved readability. Booking System Integration Research and recommend a booking system plugin suitable for our requirements. Integrate the booking system seamlessly into the site. Ensure the system is user-friendly, functional, and aligned with our branding. SEO Content Integration Use the existing content and add extra content but optimize it to improve search engine visibility. Add or modify meta titles, descriptions, and headings for better SEO performance. Basic SEO Optimization Implement foundational ...
...Your tasks will include: - Utilizing Kling AI to enhance character behaviors -Your involvement is mainly technical and will depend on a solid grasp and in-depth knowledge of Kiling AI The ideal freelancer for this project should have: - Proven experience in animation, particularly in a Pixar style - Deep understanding and experience with Kling AI - Strong skills in character development and visual effects -We have storyline, characters and scripting Though we have a vast knowledge of video & audio production, this program is new to us, and we need an expert in Kling AI, because we don't have the time to get up to speed, due to the deadline of the project. PLEASE! DONOT APPLY IF YOU DON'T HAVE SPECIFIC KLING AI KNOWLEDGE! We are primarily having most of our tro...
I'm looking for a freelancer to create a 3-4 minute, friendly and approachable introductory video for m...could convert a website visitor into a customer. - Use a mix of sourced video clips, animations, and images. - Make the video engaging with great motions and graphics. Ideal Skills and Experience: - Video editing and production - Animation - Understanding of creating promotional content - Ability to source and select appropriate video clips. You'll have creative freedom when it comes to the visual aspects, as there are no specific branding guidelines to follow. The tone of the video should be friendly and approachable, reflecting the nature of the service. A voiceover of the script will need to be synced with the visuals. Please provide examples of similar work you&...
Logo Concept for Expanza Group Visual Design The logo for Expanza Group should be modern, sleek, and symbolically rich to represent the company's commitment to growth, innovation, and support. Since you have a design resembling the shape of an eye, here’s how we can enhance it: Eye Shape as the Central Element: The eye symbolizes vision, focus, and foresight, which align with Expanza Group’s goals of enabling growth and success for clients. Use a dynamic, fluid design to represent adaptability and forward-thinking. Incorporating Growth Elements: Add subtle upward-moving elements within or around the eye (e.g., lines, arrows, or curves) to signify growth and progress. Consider integrating abstract representations of leaves or branches, emphasizing organic gro...
I'm seeking a professional to design and construct an engaging, educational database about animals. This database is aimed at providing free access to children, with the primary goal of fostering their knowledge and interest in the animal kingdom. Key Requirements: - The database should deliver basic facts and descriptions about a variety of animals. - The interface needs to be child-friendly, featuring a search function and visual aids like images and videos. - Experience in designing databases and working with educational content is essential. - A background in child education or psychology would be beneficial to create an optimal interface and content delivery.
...Foundation and framing plans - Calculations included 3. MEP Plans: - Thorough designs for mechanical (HVAC), electrical, and plumbing systems Specifications: - The duplex will feature 3 bedrooms with one on the main level. - Three bathrooms with area for full size washer and dryer preferred. - Maximum dimensions: 59' width and 50' depth. - An outdoor plan to accommodate a driveway, garage, and basic landscaping is required. - Design should include a one-car garage. Ideal candidates should be well-versed in creating traditional-style architectural designs with a strong background in residential duplex planning. Experience in structural and MEP engineering is necessary, as well as the ability to provide comprehensive calculations. Knowledge in incorporating outdo...
Telegram botumuzu bir üst seviyeye taşıyacak, yeni özellikler ekleyip mevcut yapıyı optimize edecek bir Python geliştirici arıyoruz. Botumuz, otomatik gönderiler, çekilişler, affiliate takibi sağlıyor. Versiyon 2 için yeni entegrasyonlar ve gelişmiş otomasyon özellikleri eklemeyi planlıyoruz. ? Aranan Yetkinlikler: Python (3+ yıl deneyim) API entegrasyonları, web scraping ve otomasyon araçları konularında deneyim Tercihen bahis casino sektörüne aşinalık tg: segujohnson Uzaktan çalışma ve esnek saat imkanı.
...Development Project Description: I am looking for a freelancer to develop a scraper to collect tender advertisements and documents from various sources within Namibia. The scraper should be capable of the following: Scraping Websites in Namibia: Scrape almost all Namibian websites for tender advertisements and tender documents. Scraping Social Media Platforms: Scrape LinkedIn, Instagram, X (formerly Twitter), and Facebook for tender-related adverts or documents localized to Namibia. Scraping Local Newspapers: Collect tender advertisements published in local Namibian newspapers. Scraping Specialized Websites: Scrape two key websites that focus on advertising tender documents: A government-owned website (URL to be provided). A subscription-based website (...
I'm looking for a skilled professional to create an educational PowerPoint presentation for medical professionals on a medical topic. The presentation should be designed to be engaging and informative, with a strong emphasis on the use of visual aids such as charts and graphs. Ideal skills and experience for the job include: - Extensive knowledge of medical terminology and concepts - Experience creating presentations for medical professionals - Proficiency in PowerPoint and other presentation software - Ability to interpret and present statistical data clearly and effectively - Creative skills to design visually appealing and easy-to-understand charts and graphs.
I'm looking for a unique design for a sample box. The design should be: - Fun and Colorful: The box should embody a lively, playful character that stands out. - Using Bright and Bold Colors: The color palette should be primarily made up of bright, eye-catching colors. Ideal skills for this job include graphic design and packaging design, with a solid understanding of color theory and visual aesthetics. Experience in designing product packaging or gift boxes will be highly advantageous.
No copy paste replies and no fake profiles needed who gets the work done by someone else !!! please don't waste your and my time its a very small project. I need a .Net Maui developer for a small but urgent project. The task is to create a basic online shop app with .Net Maui 8. Key Features: - An online shop with 3 sales categories, catering to 2 types of clients: Corporate (Corp) and regular consumers. - User profiles for login purposes using name and telephone number. - A shopping basket that can be modified (adding & deleting items). - A checkout process displaying a summary of all items and prices. Note: Corp customers will have a different payment timeline (end of the month). - Storage of Corp client data via either file I/O or a SQLite database. This should be bui...
Development of a blown glass lamp. Simple project. Tasks: - Internet search. Shopping list. - Basic 3D sketchup modeling. Development of a blown glass lamp. Simple project. Tasks: - Internet search. Shopping lists. - Basic 3D sketchup modeling. Further development of the executive for a steel luminaire. - Drawing up production plans under the direction of the team's designer - autocad. - Developing a package solution for the product: shipping and assembly of the product made easy, delivery of the package solution online for secure shipment of the part. Ideal profile: - ability to specify the best lamp solution. - Detail oriented. The functional and aesthetic quality of the finish matters a lot. - Works closely with a team - excellent communication and responsive. - Pr...
I'm looking to create a comprehensive, professional eBook in PDF format that guides readers on how to build ATS compliant CVs. The eBook should include: - Clickable links to remote job sites. - Samples of CVs across different levels: Entry-level, Mid-level, and Executive CVs. Ideal candidates for ...on how to build ATS compliant CVs. The eBook should include: - Clickable links to remote job sites. - Samples of CVs across different levels: Entry-level, Mid-level, and Executive CVs. Ideal candidates for this project should have experience in eBook creation, a strong understanding of ATS compliant CVs, and the ability to write in a professional tone. Skills in graphic design for layout and visual appeal of the eBook will be a plus. Please provide previous samples of similar wo...
...capable of monitoring the website around the clock for available slots. The slots open for very short period of time like 10 seconds You must be super fast. Ideal Skills and Experience: - Proficient in programming. - Experience in web scraping and automating tasks. - Familiarity with handling Cloudflare challenges. - Knowledge of server-side scripting and executing scripts on Windows servers. - Strong problem-solving skills to ensure consistent performance of the script. - I understand that developing such a script requires a comprehensive understanding of web scraping, automation, and possibly interaction with the VFS website's API. If you have experience in these areas. - Implement a user-friendly interface for easy operation - Integrate functionality to check ap...
I need an Excel macro that can automate the creation of product labels. The macro should be able to generate labels that include: - SKU number - SKU Description - UOM (Unit of Measure) - Up or Down Arrow The ideal freelancer for this project should have extensive experience in Excel and VBA (Visual Basic for Applications) for creating macros. Please provide examples of similar projects you have completed. The macro should recognize various size labels based on avery sheet label sizes. The Description, font size and number of characters should adjust based on size of label. I have existing file but would like to review as I speak to a developer to ensure needs are understood before sharing.
I'm looking for a talented 3D artist who can design and create a batch of semi realistic style 10 second 3D animations for Instagram reels. The primary purpose of these animations will be brand promotion. Ideal Skills and Experience: - Proficiency in 3D animation software - Experience in designing and creating vibrant and stylised animations - Understanding of brand promotion strategies through visual content - Knowledge of Instagram's content requirements and trends - Creative, out-of-the-box thinking to bring the brand to life in an engaging way. Please provide a portfolio showcasing your relevant work.
Código de scraping de la pagina web sin servicios de anticaptcha. Para entrega completa se debe lograr: 1. Código funcional que, a partir de un rut, busque información en nombrerutyfirma y devuelva un json son la información de la tabla generada en la pagina web. 2. Instrucciones de como Integrar en AWS lambda.
"l specialize in creating high-quality bio videos with advanced video editing techniques. This project showcases skills like green screen integration, sound effects, creative sky transitions, and professional color grading. With a focus on delivering visually appealing and engaging content, I aim to help clients elevate their personal or professional branding. Let’s work together to bring your ideas to life
...essential pages: Home, About Us, Shop/Products, FAQs, and Contact Us. Ensure each page aligns with the branding and design of the website. Dropshipping Features: Integrate dropshipping tools (e.g., Oberlo, Spocket, or other recommended apps) to facilitate product import and order fulfillment. Set up a seamless payment gateway and ensure secure checkout processes. SEO & Optimization: Implement basic on-page SEO practices to enhance search engine visibility. Optimize the website for fast loading speeds and a smooth user experience. Testing & Launch: Test the website for bugs, errors, and compatibility issues. Launch the website and provide initial support to ensure it runs smoothly. Requirements: Proven experience in developing Shopify websites, preferably for dropshipp...
...provided for this purpose. 4 - I want practical and direct documentation of what has been achieved and how it works, because it is not only about making it work, but about being able to replicate it in the future and for that I need to understand as best as possible what was going wrong and how it works now and how to replicate it. Personally, when I learn something I usually create tutorials at a basic level as if they were designed for idiots. Both for myself when I don't remember it in the future and to share them with other people. 5 - Do you have experience with Janus Gateway and UV4L? Could you tell me, of all the Janus Gateway configuration files, which ones need to be modified for this case? I've already tried to hire several people who didn't know how to...
Web Scraping Expert for Automotive Marketplaces Project Overview: We are seeking experienced web scraping experts to develop robust and reliable scraping scripts for second-hand automotive marketplaces. An example of a platform we already scrape is AutoScout24. The goal is to build scripts that we can integrate into our existing systems to run daily, ensuring high-quality data extraction with minimal downtime. Key Requirements: 1. Script Development: * Create efficient web scraping scripts for various automotive marketplaces. * Ensure the code is clean, well-documented, and easy to maintain. * Deliver the source code, as we will be running and integrating the scripts within our existing infrastructure. 2. Anti-Bot Detection and CAPTCHAs: * Implement s...
...to 90 seconds. What You’ll Do: Follow clear and concise scripts provided for every video. Perform straightforward tasks such as visiting websites, typing specific keywords, or clicking certain buttons. Record your screen while completing the steps outlined in the script. Ensure smooth transitions and a clean presentation in the video. Requirements: Basic screen recording skills (no fancy editing required). In your bid please let me know what screen recording software you will use. Attention to detail to ensure the scripts are followed accurately. No voiceover, just raw screen recording. Videos must be HD MP4. No audio must be recorded in the videos. Ability to deliver consistent quality for multiple videos. IP Agreement must be signed. What Y...
I'm seeking a skilled videographer and editor to produce a series of informative and educational vertical videos for my brand. These will primarily be showcased as product showcases on Instagram and YouTube Shorts, with the aim of captivating a young adult audience. The videos should embody a colorful and vibrant style, appealing to the visual preferences of this demographic. Key Responsibilities: - Develop engaging, informative and educational vertical videos geared towards young adults. - Edit the videos to perfectly align with the stylistic and formatting requirements of Instagram and YouTube Shorts. - Stay updated with current trends on these platforms to ensure content remains relevant and engaging. Skills Required: - Proficiency in video editing software. - Proven track...
Project Description: I need help creating a visual representation of papers hanging from the ceiling in Adobe Illustrator (AI). The papers should be rotated at specific angles (I will provide reference images or details on how they should be rotated). Additionally, I need the perspective of the scene to be adjusted so it looks realistic from both top and bottom angles. Key Requirements: Papers Hanging from Ceiling: The papers should be designed to appear as though they are naturally hanging from the ceiling. Please ensure the papers are positioned realistically with the correct flow. Rotation: I will provide the exact rotation angles for the papers. The papers should be rotated accordingly to create the desired visual effect. 3D Effect (using AI tools): While working in Adob...
I'm running a marketing campaign and I need someone to extract names and email addresses of chiptuning companies for me from google or other search engines. Specific ...extract names and email addresses of chiptuning companies for me from google or other search engines. Specific Requirements: - Data should focus on performance tuning companies only - Target regions include: Asia, Central America, Mexico, Panama, Columbia, Chile, Argentina, Brazil, Japan, Singapore, Australia, South Korea, China, Taiwan, Thailand Skills and Experience: - Data extraction and web scraping - Familiarity with chiptuning industry is a plus - Email and contact management - Knowledge of the specified regions The goal is to create a comprehensive database of potential business partners for my mark...
I'm looking for a hyper realistic animation specialist to create a product demo animation for marketing purposes. Key Requirements: - The animation will primarily be used for advertisement, so it should be engaging and visually stunning - The animation should provide a basic overview of the product features, without going into high complexity or detail Ideal Skills: - Expertise in product demo animation - Strong understanding of creating content for marketing purposes - Ability to create engaging and visually stunning hyper realistic animations
I'm seeking a skilled designer to create a modern and minimalistic logo for my brand and develop a comprehensive visual identity that communicates a professional appearance. The project will involve: - Designing a distinctive logo - Crafting a visual identity that enhances brand recognition and customer engagement The ideal candidate will have a strong portfolio in modern and minimalistic design, particularly in logo creation, and will be able to produce a visual identity that meets professional standards. Experience with social media branding is a plus.
I'm seeking a professional to help me integrate "Obfuscar" into my Visual Studio environment and assist with publishing my project. The final published project should include an obfuscated DLL and install without errors. Key project components: Objective 1: - Full obfuscation of my C# code. - Project publishing and ensuring successful installation. Objective 2: - cpp code obfuscation using LLVM Obfuscator on ubuntu - Including support to install LLVM obfuscator and obfuscator should be able to manage all kind of cpp software functionality. For objective 1: To demonstrate the project cycle, you may use this PowerPoint add-in project: and perform the obfuscation. Currently, I can run Obfuscar, but I'm having issues with the manifest file not
I'm in need of a skilled designer to create an SVG infographic for educational purposes. Key Requirements: - Experience in designing infographics, particularly SVG formats. - Ability to create clear, visually appealing and informative diagrams. - Understanding of technical information and ability to translate it into a visual format. - Use the uploaded diagram as a template to add a few more labels/lines that will be specified - Maintain the information on the template and keep a similar look and feel. nb. a source svg file is provided as a guide.
...skilled data scraper who can help gather wedding services reviews from various websites. The main task will involve scraping websites and extracting relevant information such as ratings, comments, and contact details for the service provider that was reviewed. ( Example: XYZ photographer is reviewed on Wedding Wire website. My website will list XYZ, with the publically available information, comments and reviews. If possible, I want all the information combined into a single review that combines the other reviews into an average review. The individual reviews can be viewed with clicking a "details" button revealing the specific individual reviews and the website source. ) Scraping will take place ongoing, but at least weekly. This project requires attention t...
...- The button, which should include the text "Click Here to Book a Meeting with Me!", needs to be below the footer, not too big, approximately the same size as the footer. - The GIF should have some moving or flashing parts - specifically, the text should flash while the button remains static. Ideal Skills: - Proficiency in GIF design and animation. - Strong understanding of color matching and visual coherence. - Experience in creating engaging and interactive digital content. Please note, the button should not be too big and should blend well with the footer. The text should be the only flashing component....
I'm looking for a skilled React Native developer to create some user interface and data fetching components for my application. Key Requirements: - Development of user interface components - Building of data fetching components - Both mobile and tablet compatibility I have detailed design specifications ...interface and data fetching components for my application. Key Requirements: - Development of user interface components - Building of data fetching components - Both mobile and tablet compatibility I have detailed design specifications ready, so you won't need to assist with design. The ideal candidate should be proficient in React Native and have experience working with both mobile and tablet screen sizes. Please include examples of similar projects you've wo...
I need a professional ...Functionality: Set up dedicated sections for service descriptions, a simple contact form for bookings, and a space for customer reviews. - SEO Optimization: Implement basic SEO settings to enhance our visibility on search engines. - Responsiveness: Ensure the site performs flawlessly across all devices - desktop, tablet, and mobile. - Testing: Conduct comprehensive tests to weed out bugs, optimize load times, and ensure smooth operation. Ideal Skills and Experience: - Proven track record of WordPress website development, particularly for service-based businesses. - Strong front-end development skills with a keen eye for detail. - Basic understanding of SEO principles and implementation techniques. - Experience in testing websites for functionality an...
I am looking for a skilled developer to create a native tool designed for merchandisers in the fashion industry. This project involves building a React-based pop-up that provides basic market analysis to aid strategic decision-making. Below are the details: Scope of Work: 1. Develop a Pop-up Window: • Display a pop-up (600px x 600px) showing data for each establishment. • Exclude the shop_id field in the display. 2. Graphical Representations: • Integrate R[i] values into a PieChart. • Display the mean shop score (mean_shop[i]) next to its corresponding PieChart. 3. Time Series Graph: • Add a time series graph component with filtering capabilities: • Display sales results over time for all three stores combined. • Allow users to view sale...
I'm looking for a professional freelancer who can create a basic but impactful motion graphic for my client, a law firm. It needs both an intro and an outro. Examples only of the general style. Example 1: Example 2: Skills Needed: - Proficiency in motion graphic design software - Understanding of minimalistic design principles - Ability to create engaging service promotion content.
I need a professional to create basic floor plans for a single-family home.
I'm in need of a talented VFX professional who can craft compelling motion graphics for my social media advertisements. - Purpose: The primary goal of these motion graphics is to enhance the visual appeal of my marketing materials and engage my target audience. - Platforms: The motion graphics will be used in various social media platforms, so they need to be optimized for different formats and specifications. Ideal candidates should have: - Extensive experience in creating motion graphics for marketing/advertisement purposes, particularly for social media. - A strong portfolio showcasing previous work in motion graphics - Ability to understand brand aesthetics and translate it into motion graphics. - Knowledge of current social media trends and what captures viewer's a...
I'm looking for an experienced animation studio to create a captivating trailer for my upcoming manga. With the script and storyboard already prepared, the studio will breathe life into the characters and story, crafting a visual teaser that will enthrall my target audience. - Requirements: - Proven experience in animation, particularly in creating trailers or short films. - Ability to translate a storyboard into a high-quality animated sequence. - A portfolio showcasing previous animation projects, especially in the manga or anime style. - Strong communication skills to ensure the project vision and milestones are met. - Timeliness and adherence to the project deadline. The ideal studio or team will understand the essence of manga storytelling and be capab...
I'm looking for a system that can recognize and filter both SMS text messages and push notifications. Upon filtering a recognized message, this system should automatically upload the message to a...phone user is registered as a member and agrees, and then it is automatically posted The bulletin board shows several categories Ranking order, amount order, etc. 1 Issue scratch lottery to participants When the administrator sets the image, amount, and winning probability It is displayed in the scratch lottery area and users participate There are only two functions. The rest are basic administrator page, basic member registration, etc. Social login. Only those who can develop right now can participate It should be possible on both Android and iOS Both apps should work norma...
I'm in need of a budget-friendly Solid Works designer who can assist in simulating some physics-related mechanical models. The models will primarily consist of basic shapes and forces, so a deep level of detail or complex geometry isn't necessary. Ideal Skills: - Proficiency in Solid Works - Experience with basic physics models It would be beneficial if you have: - A background in physics or mechanical engineering - A portfolio with examples of CAD work
I need a UI/UX designer to improve my website's user experience. Key Focus Areas: - Enhancing Navigation and Ease of Use: The website should be intuitive and simple to navigate. - Modernizing Visual Appeal and Layout: The design should be aesthetically pleasing and align with contemporary design trends. - Optimizing for Loading Speed and Performance: The design should consider performance and loading speed, ensuring a smooth user experience. Ideal Skills and Experience: - Proven experience in UI/UX design, particularly for websites. - Strong understanding of navigation design principles. - Ability to create visually appealing layouts. - Experience with performance optimization techniques.
I have reviewed the requirements for designing this page and understand that you're looking for a visually appealing and functional design that aligns with your brand's identity.
...allowed in the videos. * Visual Appeal: Utilize clear visuals, smooth transitions, and concise text overlays to create engaging and informative content. * Platform Optimization: Tailor videos for different social media platforms (TikTok, Instagram Reels, YouTube Shorts) by adhering to their respective formats and specifications. * Timely Delivery: Deliver the final video files according to the agreed-upon schedule and in the required formats. Essential Requirements: * Muslim Creator: We require a video creator who understands the importance and sensitivity of the Quran and can approach this project with respect and reverence. * Video Editing Skills: Proficiency in video editing software (e.g., Adobe Premiere Pro, Final Cut Pro, DaVinci Resolve) is essential. * Screen...
I'm looking for a video editor for my personal bike footage. The project involves high quality editing that includes: - Adding effects and transitions to make the video more engaging. - Color correction and grading to enhance the visual appeal and ensure consistent color throughout the video. - Cutting and trimming to create a smooth, seamless final product. Ideal skills for this job include strong video editing experience, proficiency with editing software, and an understanding of color grading techniques. I want to see my bike footage transformed into a polished, professional-quality video. Please send me examples of your previous work, ideally similar in nature to this project.
I need a modernized, bold and vibrant redesign of my company logo. The new logo should primarily focus on presenting the company name in a visually appealing, readable and contemporary styl...Ideal candidates for this project should have: - Proven experience in logo design, particularly in modernizing and bolding up existing logos. - A strong portfolio showcasing minimalistic yet attention-grabbing designs. - Excellent understanding of typography and its application in logo design. Please note, the redesign should not stray from the core identity of the brand but rather enhance its visual appeal and modernity. I have attached our current logo but i am looking at something more better than this. NOT LOOKING at usage of regular fonts and would prefer Hand drawn or uniquely created ...
I need assistance with entering text data from online content into Excel. The job involves basic formatting such as using bold and italics where needed. Ideal skills and experience for the job include: - Proficiency in Excel - Attention to detail - Ability to follow formatting instructions - Familiarity with data entry from online sources