DOAB Directory of Open Access Books
2025
KoreaMed Synapse
2018-12-01 ~ 2019-12-31
ScienceDirect
1942-01-01 ~ 현재
DOAB Directory of Open Access Books
2020
DOAB Directory of Open Access Books
2025
DOAJ: Directory of Open Access Journals
2025-01-01 ~ 현재
ScienceDirect
1979
DOAB Directory of Open Access Books
2010
DOAB Directory of Open Access Books
2015
EBSCO Open Access Journals
2011-01-01 ~ 2022-12-31