Cyril A. Ogbokor
Journal of Applied Sciences 4 ( 4 ): 644 - 648 , 2004
Journal of Social Sciences 1 ( 1 ): 57 - 60 , 2005
Journal of Social Sciences 1 ( 2 ): 77 - 80 , 2005
Journal of Social Sciences 1 ( 4 ): 243 - 245 , 2005