Agricultural Journal 3 ( 5 ): 366 - 374 , 2008
B.T. Omonona, O.A. Oni and E. Akpan
Pakistan Journal of Social Sciences 4 ( 2 ): 247 - 251 , 2007
F.Y. Okunmadewa, S.A. Yusuf and B.T. Omonona
Pakistan Journal of Social Sciences 4 ( 3 ): 331 - 339 , 2007
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The Social Sciences 3 ( 8 ): 626 - 630 , 2008