DOAB Directory of Open Access Books
2022
DOAB Directory of Open Access Books
2025
ScienceDirect
2022-01-01 ~ 현재
DOAJ: Directory of Open Access Journals
2022-01-01 ~ 현재
ScienceDirect Open Access Titles
2022-01-01 ~ 현재
DOAB Directory of Open Access Books
2020
ScienceDirect
1990-01-01 ~ 현재
DOAB Directory of Open Access Books
2025
ScienceDirect
2014
ScienceDirect
2010
Books at JSTOR: Open Access
2016
OAPEN (Open Access Publishing in European Networks)
2019
DOAB Directory of Open Access Books
2019