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An African survey : a study of problems arising in Africa south of the Sahara
Hailey, William Malcolm Hailey, (1957)
Education and social inequality in sub-Saharan Africa
Foster, Philip, (1980)
Tradition et modernisme en Afrique Noire : Rencontres Internationales de Bouaké
Pernot, Placide, (1965)
Le Racisme dans le monde
Paraf, Pierre, (1972)