Oluseyi O. Ajayi, R.O. Fagbenle, J. Katende, O.A. Omotosho and Samson Aasa
Journal of Applied Sciences 12 ( 5 ): 450 - 458 , 2012
O.S. Ismail and R.O. Fagbenle
Journal of Engineering and Applied Sciences 4 ( 5 ): 295 - 302 , 2009