Due, John F.
Taxation and economic development in tropical Africa
MIT Press, 1963
 Buku Teks
Coughlan, Robert
Tropical Africa
Time Incorporated, 1962
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The population of tropical Africa
edited by John C. Caldwell and Chukuka Okonjo
Longmans, Green, 1968
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The demography of tropical Africa
by William Brass ... [et al.]
Princenton University Press, 1968
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Kimble, George H.T.
Tropical Africa volume 1 / George H.T. Kimble
The Twentieth Century Fund, 1960
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