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·        ....... Facts About Okposieke and Other Families of Ogbolieke Onitsha. 2^nd edition, Onitsha 1982.

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·        .......Trade and Development in Onitsha: 1857 - 1960, MA Thesis, University of Lagos, 1991.

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·        .......The Catholic Church in Onitsha People, Places and Events, 1885-1985.  Onitsha: Etukokwu Press 1985.

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·        .......The Chima Dynasty in Onitsha.  Lagos: John Peterson Enterprises, 1997.

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·        .......Onitsha Market Literature.  Africana Pub. Corp., 1972.

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·        .......Onitsha Custom of Title-Taking.  Onitsha: Renascent Africa Press, Ltd., 1953.