1977
Buku Teks
Keith, Arthur Berriedale, 1879-1944, author
British Council, 1940
Buku Teks
Underhill, Frank H., author
Duke University Press, 1956
Buku Teks
edited by M. Fortes and E.E. Evans-Pritchard
Oxford University Press, 1950
Buku Teks
edited and with Introductions by Paul E. Sigmund
Frederick A. Praeger, 1967
Buku Teks