ScienceDirect
1964
ScienceDirect
1987
ScienceDirect
1966
ScienceDirect
1969
ScienceDirect
2016-01-01 ~ 현재
DOAJ: Directory of Open Access Journals
2016-01-01 ~ 현재
PubMed Central (PMC)
2016-01-01 ~ 2027-12-31
ScienceDirect Open Access Titles
2016-01-01 ~ 현재
DOAJ: Directory of Open Access Journals
2003-01-01 ~ 현재
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2003-01-01 ~ 현재
Wiley Online Library Open Access
2014-01-01 ~ 2015-12-31
DOAB Directory of Open Access Books
2024
OAPEN (Open Access Publishing in European Networks)
2021
Taylor & Francis eBooks (Open Access)
2020
ScienceDirect
2021-04-01 ~ 현재
DOAJ: Directory of Open Access Journals
2021-01-01 ~ 현재
ScienceDirect Open Access Titles
2021-04-01 ~ 현재