Ekeh, P. P. Kinship and state in African and African American histories: Peter P. Ekeh. The African diaspora : African origins and new world identities.(2001).

Ekeh, Peter P. "Kinship and State in African and African American Histories: Peter P. Ekeh." The African Diaspora : African Origins and New World Identities.(2001) .

Ekeh, Peter P. "Kinship and State in African and African American Histories: Peter P. Ekeh." The African Diaspora : African Origins and New World Identities.(2001), .