EBSCO Open Access Journals
2013-01-01 ~ 2014-12-31
DOAB Directory of Open Access Books
2012
ScienceDirect
1978
ScienceDirect
1978
ScienceDirect
1983
ScienceDirect
1977
OAPEN (Open Access Publishing in European Networks)
2018
DOAB Directory of Open Access Books
2018
Books at JSTOR: Open Access
2019
De Gruyter Brill Open Access eBooks
2018
Project Muse Open Access ebooks
2018
ScienceDirect
1974
MIT Press Direct to Open Backfile Complete Monographs
2003
EBSCO Open Access Journals
1996-01-01 ~ 현재