DOAB Directory of Open Access Books
2012
EBSCO Open Access Journals
2017-01-01 ~ 현재
PubMed Central (PMC)
2008-01-01 ~ 2025-12-31
EBSCO Open Access Journals
2008-01-01 ~ 현재
Taylor & Francis Open
2008-01-01 ~ 2025-12-31
DOAB Directory of Open Access Books
2022
DOAB Directory of Open Access Books
2020
OAPEN (Open Access Publishing in European Networks)
2012
DOAB Directory of Open Access Books
2012
DOAB Directory of Open Access Books
2012
DOAB Directory of Open Access Books
2025
DOAB Directory of Open Access Books
2025
DOAB Directory of Open Access Books
2025