DOAB Directory of Open Access Books
2024
DOAB Directory of Open Access Books
2025
OAPEN (Open Access Publishing in European Networks)
2020
DOAB Directory of Open Access Books
2020
Springer Nature Link eBooks - Fully Open Access
2020
ScienceDirect
1978
ScienceDirect
1979
ScienceDirect
1982
ScienceDirect
1983
ScienceDirect
1986
ScienceDirect
2022
DOAB Directory of Open Access Books
2025