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1.Taylor & Francis
https://www.tandfonline.com/openaccess
2. ElSEVIER
https://www.elsevier.com/about/open-science/open-access/open-access-journals
3.WILEY
https://authorservices.wiley.com/open-research/open-access/index.html
4. SPRINGER
https://www.springeropen.com/
5. SCIENCE OPEN
https://www.scienceopen.com/
6. SCIENCE DIRECT
https://www.sciencedirect.com/browse/journals-and-books
7. JSTOR
https://about.jstor.org/oa-and-free/
8. (OAL)OPEN ACCESS LIBRARY
http://www.oalib.com/
9. OXFORD ACADEMIC
https://academic.oup.com/journals/pages/open_access
10. LUND UNIVERSITY LIBRARIES
https://www.lub.lu.se/en/services-support/publishing-registering/open-access
11. KARGER
https://www.karger.com/OpenAccess
12. THIEME OPEN
https://open.thieme.com/web/19/home
13. OMNICS OPEN ACCESS
https://www.omicsonline.org/
14. BMC
https://www.biomedcentral.com/
15. MDPI
https://www.mdpi.com/about/journals
16. COGENT OA
https://www.cogentoa.com/
17. OPEN ACCESS
https://www.omicsonline.org/
18. ERUDIT
https://www.erudit.org/en/
19. HIGHWIRE
https://www.highwirepress.com/
20. DIRECTORY OF OPEN SCIENCE ARTICLES
https://www.doaj.org/