M.U. Eteng, B.J. Bassey, I.J. Atangwho, G.E. Egbung, E.U. Eyong, P.E. Ebong and A.O. Abolaji
Asian Journal of Biochemistry 3 ( 4 ): 228 - 234 , 2008
A.O. Abolaji, A.H. Adebayo and O.S. Odesanmi
Research Journal of Medicinal Plants 1 ( 4 ): 121 - 127 , 2007