H.A. Ogbunugafor, F.U. Eneh, A.N. Ozumba, M.N. Igwo-Ezikpe, J. Okpuzor, I.O. Igwilo, S.O. Adenekan and O.A. Onyekwelu
Pakistan Journal of Nutrition 10 ( 5 ): 409 - 414 , 2011