ScienceDirect
2025
OAPEN (Open Access Publishing in European Networks)
2013
DOAB Directory of Open Access Books
2013
DOAB Directory of Open Access Books
1958
OAPEN (Open Access Publishing in European Networks)
1958
Books at JSTOR: Open Access
1958
Brill Open e-Books
1958
DOAB Directory of Open Access Books
2018
EBSCO Open Access Journals
1967
EBSCO Open Access Journals
1967-01-01 ~ 현재
OAPEN (Open Access Publishing in European Networks)
2013
DOAB Directory of Open Access Books
2013
Books at JSTOR: Open Access
2013
EBSCO Open Access Journals
2010-01-01 ~ 2012-12-31
J-STAGE Journals (Open Access)
2016-01-01 ~ 2025-12-31