Wiedner, Donald L. Donal Lawrence)
A history of Africa south of the Sahara / Donald L. Wiedner
Random House, 1962
 Buku Teks SO
A Symposium on fertility in sub-sahara Africa
Washington, D.C :Worl bank, 1996.,
 Buku Teks
Africa : journal of the International African Institute
London : Oxford University Press
 Majalah, Jurnal, Buletin
Peter, Chris Maina
Human rights in africa: a comparative study of the african human and people's rights charter and the new tanzanian bill of rights
Greendwood Press, 1990
 Buku Teks SO
Swift, Jeremy
The Sahara
Time-Life Internationa, 1975
 Buku Teks SO