Ayany, S.G., A History of Zanzibar. A Study in Constitutional Development 1934-1964, East African Literature Bureau, Nairobi, 1970.

Okello. J.. Revolution in Zanzibar, East African Publishing House, Nairobi, 1967.

Saul, J.S., The State and Revolution in Eastern Africa, Heinemann, London, 1979.

Stockwell. J., In Search of Enemies, Futura Publications. London, 1979.

Mazrui, A.A., Violence and Thought, Longman. Harlow, 1969.

Hyden, G,, Political Development in Rural Tanzania, East African Publishing House, Nairobi, 1969.