ScienceDirect
1999
ScienceDirect
2000
PubMed Central (PMC)
2014-01-01 ~ 2024-12-31
Wiley Online Library Open Access
2014-01-01 ~ 2024-12-31
DOAJ: Directory of Open Access Journals
2024-01-01 ~ 현재
OAPEN (Open Access Publishing in European Networks)
2020
DOAB Directory of Open Access Books
2020
ScienceDirect
2015
DOAB Directory of Open Access Books
2018
Taylor & Francis Social Science and Humanities (KESLI)
2002-01-01 ~ 현재
ScienceDirect
1964
ScienceDirect
1975