Database
Proquest Ebook Central Academic Complete
125
EBSCOhost Ebook Collection
91
Springer Complete eBooks
31
Books at JSTOR
22
Springer e-books
11
Academic Video Online
9
Oxford Scholarship Online
7
EBSCO Open Access Journals
5
MIT Press Direct to Open
4
DOAJ: Directory of Open Access Journals
3
Chicago Complete Collection - Current Access
2
Early English Books Online
2
JSTOR Arts & Sciences V Archive Collection
2
Springer Nature Complete Journals
2
Springer eBooks
2
Environment Complete
1
Oxford University Press
1
ScienceDirect
1
ScienceDirect Open Access Titles
1
Springer Nature eBook
1
SpringerLink Journals Fully Open Access
1