DOAB Directory of Open Access Books
2018
ScienceDirect
1979
DOAJ: Directory of Open Access Journals
2011-01-01 ~ 현재
EBSCO Open Access Journals
2011-01-01 ~ 현재
JSTOR Open Access Journals
1987-01-01 ~ 2026-12-31
ScienceDirect
2024
ScienceDirect
2024
DOAB Directory of Open Access Books
2019
DOAJ: Directory of Open Access Journals
2016-01-01 ~ 현재
DOAJ: Directory of Open Access Journals
2008-01-01 ~ 현재
Wiley Online Library Open Access
2008-01-01 ~ 현재
DOAB Directory of Open Access Books
2008
ScienceDirect
1986-01-01 ~ 현재