Mal:Middleton 1992
Middleton, John (1992). The World of the Swahili. New Haven & London: Yale University Press. ISBN 0-300-05219-7. Kapittel 5 - 7.
Middleton, John (1992). The World of the Swahili. New Haven & London: Yale University Press. ISBN 0-300-05219-7. Kapittel 5 - 7.