ScienceDirect
1978
DOAB Directory of Open Access Books
2017
ScienceDirect
2014-01-01 ~ 현재
ScienceDirect Open Access Titles
2016-04-01 ~ 2016-04-30
DOAB Directory of Open Access Books
2024
DOAB Directory of Open Access Books
2025
Springer Nature Link eBooks - Fully Open Access
2020
OAPEN (Open Access Publishing in European Networks)
2020
DOAB Directory of Open Access Books
2020
OAPEN (Open Access Publishing in European Networks)
2015
DOAB Directory of Open Access Books
2015
Taylor & Francis eBooks (Open Access)
2015
DOAB Directory of Open Access Books
2024
IOS Press Open Access eBooks
2023