EBSCO Open Access Journals
2012-10-01 ~ 2018-12-31
DOAB Directory of Open Access Books
2024
Books at JSTOR: Open Access
2023
Oxford Open Ebooks
2023
Project Muse Open Access ebooks
2023
EBSCO Open Access Journals
2023-01-01 ~ 현재
DOAJ: Directory of Open Access Journals
2018-01-01 ~ 현재
PubMed Central (PMC)
2018-01-01 ~ 2022-12-31
EBSCO Open Access Journals
2018-01-01 ~ 현재
EBSCO Open Access Journals
2017-01-01 ~ 현재
EBSCO Open Access Journals
1968-01-01 ~ 현재
ScienceDirect
2012-01-01 ~ 2014-12-31
ScienceDirect Open Access Titles
2012-01-01 ~ 2014-12-31
EBSCO Open Access Journals
2007-01-01 ~ 현재
EBSCO Open Access Journals
2012-02-01 ~ 현재
EBSCO Open Access Journals
2002-01-01 ~ 2017-12-31