Nielsen, Waldemar A.
Africa
Atheneum, 1966
 Buku Teks
Rooney, D.D.
The building of modern Africa
George G. Harrap, 1967
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Africa today
edited by C. Grove Haines
John Hopkins Press, 1956
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Africa in the modern world
edited by Calvin W. Stillman
University of Chicago Press, 1955
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Ethnicity in Modern Africa
edited Brian M. du Toit
Westview Press, 1978
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