Open/Free Sources

Open Access Journals (e-journals)

• http://www.kkhsou.in/library/oajse/
• https://doaj.org/

Open Access Books (e-books)

• https://www.doabooks.org/
• http://infolibrarian.com/ebook.html
  

Open Access Theses and Dissertations

• https://oatd.org/
• http://search.ndltd.org/
• http://shodhganga.inflibnet.ac.in/
• http://shodhgangotri.inflibnet.ac.in/
  

Databases

• Bibliographic databases
• Full-text databases
• Statistical databases

E-repositories

• Repositories search tools
• Full-text repositories

Courtesy: http://infolibrarian.com