U.C. Ibekwe
Agricultural Journal 2 ( 5 ): 574 - 576 , 2007
Research Journal of Applied Sciences 2 ( 7 ): 839 - 841 , 2007
C.C. Eze and U.C. Ibekwe
The Social Sciences 2 ( 2 ): 116 - 120 , 2007
The Social Sciences 3 ( 1 ): 61 - 65 , 2008