OAPEN (Open Access Publishing in European Networks)
2021
DOAB Directory of Open Access Books
2021
Books at JSTOR: Open Access
2021
Project Muse Open Access ebooks
2021
DOAB Directory of Open Access Books
2021
ScienceDirect
2016
ScienceDirect
2014
ScienceDirect
2014-01-01 ~ 현재
ScienceDirect
2014
ScienceDirect
2018
ScienceDirect
2014
ScienceDirect
2014
ScienceDirect
2014