Open access books

Booksc.org

Pdfdrive.com

Intechopen.com

Hindawi.com

Directory of Open Access Books (DOAB)

Open access journals

WorldWideScience.org

Springeropen journals

African journals online(AJOL)

Journals 

Cambridge University Press
Research4life.org (AGORA, OARE, GOALI)
University of Chicago Journals
Wiley Online Library
Oxford University Press Journals