ScienceDirect
2012
OAPEN (Open Access Publishing in European Networks)
2015
DOAB Directory of Open Access Books
2015
Springer Nature Link eBooks - Fully Open Access
2016
ScienceDirect
2011
DOAB Directory of Open Access Books
2022
Cambridge Open Access Books and Elements
2022
EBSCO Open Access Journals
2012-01-01 ~ 2020-12-31
OAPEN (Open Access Publishing in European Networks)
2026
DOAB Directory of Open Access Books
2026
J-STAGE Journals (Open Access)
2009-01-01 ~ 2012-12-31
Project Muse Open Access ebooks
2007
DOAB Directory of Open Access Books
2021
ScienceDirect
2018