Thurnwald, Richard, 1869-1954
Black and white in East Africa; the fabric of a new civilization: a study in social contact and adaptation of life in East Africa, by Richard C. Thurnwald
George Routledge and Sons, 1935
 Buku Teks
Henderson, Ian
Man hunt in Kenya
Doubleday, 1958
 Buku Teks
Seligman, C.G.
Races of Africa
Thornton Butterworth, 1939
 Buku Teks
Malinowski, Bronislaw, 1884-1942
Dinamik bagi perubahan budaya : satu penyiasatan mengenai perhubungan ras di Afrika
Dewan Bahasa dan Pustaka Kementerian Pelajaran, 1983
 Buku Teks SO
Rayner, William
The tribe and its successors : an account of African traditional life and of European settlement in southern rhodesia
Frederick A. Praeger, 1962
 Buku Teks