1. Directory of Open Access Books : a directory that provides access to more than 20 thousand online books.
  2. Open Access Publishing in European Network (OAPEN): provides access to more than 5000 online books. Available fields include humanities, economics, art, law, and literature.
  3. Aceh Books (KITLV): provides access to more than 1200 collections about Aceh. The collection is part of the Royal Institute of Southeast Asian and Caribbean Studies (KITLV) in Leiden.
  4. Springer: there are more than 900 books from Springer publisher that can be accessed online and in full text.
  5. Open Access Books on Jstor: there are more than 6000 titles from various publishers, including Brill, Cornell University Press, and De Gruyter which can be accessed for free.
  6. Open Access Books from Australian National University: there are hundreds of free downloadable books in varied subjects, particularly in the fields of international policy and regional studies of Australia, Asia, and the Pacific.
  7. ACM Digital Library:Journal articles and e-books on computer field can be accessed for free until June 2020.
  8. Free Resources from Project Muse: various university publishers and academic communities provide books or journal articles that can be accessed for free during the Covid 19 pandemic.
  9. Buku terbitan Lipi Press: books published by Lipi Press that can be accessed for free during the Covid 19 pandemic.
  10. providing open access journals from various fields.
  11. ElSEVIER: is a website that provides open access journals that focus on science, technology, and health.
  12. WILEY: Wiley provides 1600+ collection of openly access journals. Wiley also provides facilities for journal writers to publish their articles.
  13. SCIENCE OPEN: this website provides open access to scientific articles/works and journals from various fields.
  14. SCIENCE DIRECT: this website provides open access journals that are connected to Elsevier website. There are various disciplines available: Science, Health and Social Sciences.
  15. (OAL) OPEN ACCESS LIBRARY: a repository that provides more than 4 million open access articles.
  16. OXFORD ACADEMIC: Oxford University Press (OUP) provides open access articles and journals from various disciplines. Several journals from OUP can be accessed in full text.
  17. LUND UNIVERSITY LIBRARIES: Lund University has opened access to their digital content.
  18. KARGER: provides open access articles/journals that can be accessed online. It focuses on the field of medical/health sciences.
  19. THIEME OPEN: open access scientific articles/journals provided by Thieme Group. This website focuses on the fields of health sciences, medicine, and chemistry.
  20. OMNICS OPEN ACCESS: open access scientific articles/journals that focus on the fields of health sciences, medicine, pharmacy, engineering, as well as technology and management.
  21. BMC: open access scientific articles/journals that focus on the fields of biology, pharmacy, and medicine.
  22. MDPI: open access scientific articles/journals that provide various disciplines.
  23. ERUDIT: open access scientific articles/journals that focus on social sciences, such as art, economics, history, literature, and psychology.
  24. HIGHWIRE : open access scientific articles/journals that provide various scientific fields and can be accessed online.
  25. DIRECTORY OF OPEN SCIENCE ARTICLES: open access scientific articles/journals that have 4.7 million articles from 133 countries and provide various fields of knowledge that can be accessed online.

Open Access Materials on Corona Virus
1. Covid-19: Novel Coronavirus Content free To Access from Taylor & Francis: there are more than 1400 articles related to Corona Virus that can be downloaded for free.

2. Free Access for Covid-19 materials from Elsevier: There are more than 20 thousand research articles related to Corona Virus 19 that can be accessed for free.

3. Free materials about Corona Virus 19 from Springer Nature

4. Free materials from Sage Journals: research articles related to Corona Virus 19 from various perspectives/disciplines.