Tolong jelaskan mengenai Bahan Bacaan dari Shehu Shagari

Shehu Othman: Classes, Crises and Coup: The Demise of Shagari's Regime. African Affairs > Vol. 83, No. 333

"Special advisers to the Nigerian President", 1979. The British Broadcasting Corporation.

"Nigerian Cabinet Changes", the British Broadcasting Corporation, BBC Summary of World Broadcasts, February 17, 1982.