OAPEN (Open Access Publishing in European Networks)
2020
DOAB Directory of Open Access Books
2020
Books at JSTOR: Open Access
2020
DOAB Directory of Open Access Books
2026
DOAB Directory of Open Access Books
2026
DOAJ: Directory of Open Access Journals
2014-01-01 ~ 현재
EBSCO Open Access Journals
1980-01-01 ~ 현재
DOAB Directory of Open Access Books
2022
EBSCO Open Access Journals
2001-01-01 ~ 2018-12-31
ScienceDirect
2015-12-01 ~ 현재
PubMed Central (PMC)
2017-01-01 ~ 2025-12-31
ScienceDirect Open Access Titles
2015-12-01 ~ 현재
ScienceDirect
2025-05-01 ~ 현재
PubMed Central (PMC)
2025-01-01 ~ 현재
EBSCO Open Access Journals
2015-05-01 ~ 현재
ScienceDirect Open Access Titles
2025-05-01 ~ 현재
EBSCO Open Access Journals
2000-01-01 ~ 2009-12-31