K.C. Patrick-Iwuanyanwu, C.C. Onyemaenu, M.O. Wegwu and E.O. Ayalogu
Research Journal of Environmental Toxicology 4 ( 3 ): 134 - 140 , 2010
K.C. Patrick-Iwuanyanwu, C.C. Onyemaenu, M.O. Wegwu and E.O. Ayalogu
Research Journal of Environmental Toxicology 5 ( 1 ): 49 - 57 , 2011