ScienceDirect
2024-03-01 ~ 현재
ScienceDirect Open Access Titles
2024-03-01 ~ 현재
DOAB Directory of Open Access Books
2009
DOAB Directory of Open Access Books
2005
DOAJ: Directory of Open Access Journals
2010-01-01 ~ 현재
EBSCO Open Access Journals
2004-01-01 ~ 현재
PubMed Central (PMC)
1908-01-01 ~ 1909-12-31
EBSCO Open Access Journals
1908-01-01 ~ 1909-12-31
MIT Press Direct to Open Backfile Complete Monographs
2013
EBSCO Open Access Journals
2007-01-01 ~ 2008-12-31
OAPEN (Open Access Publishing in European Networks)
2024
DOAB Directory of Open Access Books
2024
MIT Press Direct to Open Backfile Complete Monographs
2016