Books at JSTOR: Open Access
2021
DOAB Directory of Open Access Books
2021
Books at JSTOR: Open Access
2021
ScienceDirect
1970
DOAB Directory of Open Access Books
2022
OAPEN (Open Access Publishing in European Networks)
2022
DOAB Directory of Open Access Books
2022
Books at JSTOR: Open Access
2022
OAPEN (Open Access Publishing in European Networks)
2026
DOAB Directory of Open Access Books
2026
DOAB Directory of Open Access Books
2023
DOAB Directory of Open Access Books
2009
한국학술정보 (KISS)
2000-01-01 ~ 2000-12-31