DOAB Directory of Open Access Books
2023
ScienceDirect
1993
DOAB Directory of Open Access Books
2025
ScienceDirect
2023
Wiley Online Library Open Access
2014-01-01 ~ 2015-12-31
ScienceDirect
1948
ScienceDirect
1980
ScienceDirect
1980
ScienceDirect
1956
ScienceDirect
1961