DOAB Directory of Open Access Books
2018
Books at JSTOR: Open Access
2018
DOAJ: Directory of Open Access Journals
2007-01-01 ~ 현재
EBSCO Open Access Journals
1999-01-01 ~ 현재
EBSCO Open Access Journals
2006-01-01 ~ 현재
DOAJ: Directory of Open Access Journals
2011-01-01 ~ 현재
DOAB Directory of Open Access Books
2016
DOAJ: Directory of Open Access Journals
2019-01-01 ~ 현재
DOAJ: Directory of Open Access Journals
2002-01-01 ~ 현재
DOAJ: Directory of Open Access Journals
2001-01-01 ~ 현재
EBSCO Open Access Journals
1998-07-01 ~ 현재