DOAB Directory of Open Access Books
2018
OAPEN (Open Access Publishing in European Networks)
2018
DOAB Directory of Open Access Books
2021
DOAB Directory of Open Access Books
2024
DOAB Directory of Open Access Books
2021
DOAJ: Directory of Open Access Journals
2013-01-01 ~ 현재
EBSCO Open Access Journals
2013-01-01 ~ 현재
OAPEN (Open Access Publishing in European Networks)
2019
DOAB Directory of Open Access Books
2019
DOAB Directory of Open Access Books
2022
DOAB Directory of Open Access Books
2024
DOAB Directory of Open Access Books
2025