M.O. Edoga, L.I. Onyeji and O.O. Oguntosin
Journal of Engineering and Applied Sciences 3 ( 8 ): 642 - 646 , 2008
M.O. Edoga and E.A. Egila
Journal of Engineering and Applied Sciences 3 ( 8 ): 647 - 650 , 2008
L.I. Onyeji, M.O. Edoga, S. Umar and E.U. Aneke
Journal of Engineering and Applied Sciences 3 ( 11 ): 884 - 892 , 2008