DOAJ: Directory of Open Access Journals
2013-01-01 ~ 현재
OAPEN (Open Access Publishing in European Networks)
2014
DOAB Directory of Open Access Books
2014
Books at JSTOR: Open Access
2014
DOAJ: Directory of Open Access Journals
2006-01-01 ~ 현재
EBSCO Open Access Journals
2005-01-01 ~ 2015-12-31
DOAB Directory of Open Access Books
2012
DOAB Directory of Open Access Books
2020
DOAJ: Directory of Open Access Journals
2019-01-01 ~ 현재
DOAJ: Directory of Open Access Journals
2018-01-01 ~ 현재
DOAJ: Directory of Open Access Journals
2016-01-01 ~ 현재
DOAJ: Directory of Open Access Journals
2016-01-01 ~ 현재