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کتاب های ماندگار - دانلود کتاب های متن اصلی و اسکن شده - کتاب های ماندگار

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YouTube is a place to discover, watch, upload and share videos.

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Facebook is a social utility that connects people with friends and others who work, study and live around them. People use Facebook to keep up with friends, upload an unlimited number of photos, post links and videos, and learn more about the people ...

Daily news of Iran and Iranians from four corners of the world.

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Internet Archive is a non-profit digital library offering free universal access to books, movies & music, as well as 150 billion archived web pages.

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Academia.edu helps academics follow the latest research.

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Where you can access 100+ college textbooks by expert authors. Faculty can personalize content at the line level; students can choose print and digital formats. Access entire textbooks starting at $24. Brilliant.

Founded in 1987, IGI Global (IGI) is an international publishing company specializing in high-quality research publications in the fields of computer science and information technology management.