Database
EBSCOhost Ebook Collection
10
Proquest Ebook Central Academic Complete
10
Springer Complete eBooks
5
DOAJ: Directory of Open Access Journals
2
Environment Complete
2
PubMed Central (PMC) Open Access
2
Academic Search Premier
1
Academic Video Online
1
Bentham Open - Journals
1
Books at JSTOR: Open Access
1
EBSCO Open Access Journals
1
Kanopy
1
ScienceDirect
1
ScienceDirect Open Access Titles
1
Springer e-books
1
Wiley Online Library
1