I.P. Ogbuewu, V.U. Odoemenam, H.O. Obikaonu, M.N. Opara, O.O. Emenalom, M.C. Uchegbu, I.C. Okoli, B.O. Esonu and M.U. Iloeje
Research Journal of Medicinal Plants 5 ( 3 ): 230 - 245 , 2011