- Author: Akuma-Kalu Njoku, Elochukwu Uzukwu
- Language: English
- Year: 2014
- Author: Chima J. Korieh, Emmanuel N. Obiechina, Maureen N. Eke, Catherine Obianuju Acholonu, Dorothy Chinwe Okaegbu, Ogbo Ugwuanyi, Elizabeth Odachi Onogwu, Raphael Chijioke Njoke, Ogbu U. Kalu, J. Akuma Kalu-Njoku, Felix K. Ekechi, Adiele Afigbo, John N. Oriji, Douglas B. Chambers, Hannah N. Eby Chukwu, Daniel Kloza, Ron Milland
- Language: English
- Year: 2009