DOAB Directory of Open Access Books
2021
DOAB Directory of Open Access Books
2024
DOAB Directory of Open Access Books
2016
DOAB Directory of Open Access Books
2021
DOAB Directory of Open Access Books
2024
EBSCO Open Access Journals
1977-01-01 ~ 현재
EBSCO Open Access Journals
1981-01-01 ~ 1997-12-31
OAPEN (Open Access Publishing in European Networks)
2014
DOAB Directory of Open Access Books
2014
Taylor & Francis eBooks (Open Access)
2014
OAPEN (Open Access Publishing in European Networks)
2009
DOAB Directory of Open Access Books
2009
Books at JSTOR: Open Access
2009
EBSCO Open Access Journals
2007-01-01 ~ 2008-12-31