1. C. Eze: Cosmopolitan Solidarity. Negotiating Transculturality in Contemporary Nigerian Novels, in: English in Africa 32, 2005, 1, 99–112.
2. M. Wade: P. A., 1972.
3. K. Ogungbesan: The Writing of P. A., 1979.
4. R. Ensor: The Novels of P. A. and the Rise of Nationalism in Africa, 1992.
5. P. A. : The Black Experience in the 20th Century. An Autobiography and Meditation, 2000.