Collection
Directory of Open Access Books
227
Springer Book Archives -2004
45
Springer eBooks 2005-
22
OAPEN
21
Emerald Business, Management and Economics eBook Collection Archive
8
JSTOR Open Access Books
8
ACS Symposium Series
6
National Center for Biotechnology Information
5
O'Reilly
5
JSTOR Books
2
MIT Press eBook Archive
2
World Bank E-Library Archive
2
Cambridge Books Online
1
DeGruyter MPG Collection
1
Oxford University Press
1