By Mbiti, John S.
By Gemmell, David
By Morton, Chris and Ceri Louise Thomas.
By Yaya Diallo, Mitchell K. Hall
By Diana Cooper
By Maurice M. Cotterell
By Paul Francis
By Evans-Pritchard, e. e.
By Cooper, Diana
By Douglas H. Johnson
By Guy Morpuss
By Renie Chow Choy