DOAJ: Directory of Open Access Journals
2015-01-01 ~ 현재
EBSCO Open Access Journals
1996-01-01 ~ 2020-12-31
Books at JSTOR: Open Access
2025
De Gruyter Brill Open Access eBooks
2026
ScienceDirect
2023
DOAB Directory of Open Access Books
2022
DOAB Directory of Open Access Books
2017
DOAB Directory of Open Access Books
2009
DOAB Directory of Open Access Books
2020
EBSCO Open Access Journals
2019-01-01 ~ 2020-12-31
OAPEN (Open Access Publishing in European Networks)
2019
DOAB Directory of Open Access Books
2019