스콜라 (Scholar)
1994-01-01 ~ 1994-12-31
DOAB Directory of Open Access Books
2024
DOAB Directory of Open Access Books
2015
DOAB Directory of Open Access Books
2018
OAPEN (Open Access Publishing in European Networks)
2022
DOAB Directory of Open Access Books
2022
OAPEN (Open Access Publishing in European Networks)
2019
DOAB Directory of Open Access Books
2019
Books at JSTOR: Open Access
2019
ScienceDirect
2016
OAPEN (Open Access Publishing in European Networks)
2014
DOAB Directory of Open Access Books
2014
Books at JSTOR: Open Access
2014
De Gruyter Brill Open Access eBooks
2014
DOAB Directory of Open Access Books
1998
De Gruyter Brill Open Access eBooks
1998
EBSCO Open Access Journals
2024-05-02 ~ 현재