Database
Proquest Ebook Central Academic Complete
71
EBSCOhost Ebook Collection
65
Springer Complete eBooks
36
Books at JSTOR
9
Springer e-books
8
Oxford Scholarship Online
6
ScienceDirect
5
Springer Nature Complete Journals
4
Springer eBooks
3
DOAJ: Directory of Open Access Journals
2
JSTOR Arts & Sciences I Archive Collection
1
MIT Press Direct to Open
1
Springer - LINK
1
Wiley Online Library Database Model
1
Wiley Online Library Open Access
1