DOAB Directory of Open Access Books
2006
OAPEN (Open Access Publishing in European Networks)
2022
DOAB Directory of Open Access Books
2022
De Gruyter Brill Open Access eBooks
2022
OAPEN (Open Access Publishing in European Networks)
2019
DOAB Directory of Open Access Books
2019
Taylor & Francis eBooks (Open Access)
2019
DOAJ: Directory of Open Access Journals
2010-01-01 ~ 현재
Books at JSTOR: Open Access
2012
Brill Open e-Books
2012
OAPEN (Open Access Publishing in European Networks)
2011
DOAB Directory of Open Access Books
2011
DOAB Directory of Open Access Books
2023
OAPEN (Open Access Publishing in European Networks)
2023
DOAJ: Directory of Open Access Journals
2014-01-01 ~ 현재
OAPEN (Open Access Publishing in European Networks)
2016
DOAB Directory of Open Access Books
2016
Books at JSTOR: Open Access
2016
De Gruyter Brill Open Access eBooks
2016
Project Muse Open Access ebooks
2016