DOAB Directory of Open Access Books
2024
ScienceDirect
2020
ScienceDirect
1989
OAPEN (Open Access Publishing in European Networks)
2019
DOAB Directory of Open Access Books
2019
ScienceDirect
2026
OAPEN (Open Access Publishing in European Networks)
2026
DOAB Directory of Open Access Books
2026
Springer Nature Link eBooks - Fully Open Access
2026
ScienceDirect
2017
누리미디어 (DBPia)
1989-01-01 ~ 1991-12-31
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2026