Patrick Dele-Cole, Modern and Traditional Elites in the Politics of Lagos, Cambridge University Press, 1975 (ISBN9780521204392, lire en ligne), 159
Patrick Dele-Cole, Modern and Traditional Elites in the Politics of Lagos, Cambridge University Press, 1975, 164–165 (ISBN9780521204392, lire en ligne)
Patrick Dele-Cole, Modern and Traditional Elites in the Politics of Lagos, Cambridge University Press, 1975, 174–175 (ISBN9780521204392, lire en ligne)