Hrbek, I. Historia kuu ya Afrika. Volume 3: Afrika kuanzia karne ya saba hadi ya kumi na moja - Dar es Salaam: TUKI, 1999. - xix,417p. : ill. ; 22cm. ISBN: 9976911327 Subjects--Topical Terms: Africa.History. LC Class. No.: IKR-MKV DT20.G452 Vol. 3