ScienceDirect
2014
ScienceDirect
2012
Brill Open e-Books
2025
DOAB Directory of Open Access Books
2017
OAPEN (Open Access Publishing in European Networks)
2017
EBSCO Open Access Journals
1999-01-01 ~ 현재
DOAB Directory of Open Access Books
2019
OAPEN (Open Access Publishing in European Networks)
2004
DOAB Directory of Open Access Books
2004
DOAB Directory of Open Access Books
2016
Books at JSTOR: Open Access
2022