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Library Genesis is a scientific community targeting collection of books on natural science disciplines and engineering.
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Ebook 300 offers the most flexible options for acquiring eBooks and other authoritative content from the world's leading publishers. ebrary offers an increasing selection of more than 41,800 e-Books of 220 distinguished international publishers.
Getfreebooks Includes ebooks on all discipline

Getfreebooks Includes ebooks on all discipline.
Ebookee.com is a free search engine that provides an option to search for and download various PDF&DOC documents, data sheets etc.
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