திறந்த அணுகல் மின்புத்தகங்கள் – Open Access Books
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Digital Library of India
13 -
Directory of Open Access Books: DOAB
1 -
e-Book Engineering Core (EBSCO)
1 -
E-Books Directory
8 -
EOLSS - Encyclopedia Life Support Systems (UNESCO)
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GALILEO Open Learning Materials
3 -
HathiTrust Digital Library
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Internet Archive
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McGraw Hill Access Engineering
3 -
MERLOT
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Million books project
3 -
OAPEN
1 -
Project Gutenberg
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Teaching Commons Open Educational Resources
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The National Academies Press
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UC Press E-Books Collection, 1982-2004
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University Press ebooks, Purdue University
1 -
World eBook Library
2