Ouma, S. J. (1988). A history of the cooperative movement in Kenya. Bookwise Ltd..
Lua i Stíl Chicago (17ú heag.)Ouma, Sylvester J. A History of the Cooperative Movement in Kenya. Nairobi, Kenya: Bookwise Ltd., 1988.
Lua MLA (9ú heag.)Ouma, Sylvester J. A History of the Cooperative Movement in Kenya. Bookwise Ltd., 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.