K.I. Ogbonna, I.C. Idiong and H.M. Ndifon
Agricultural Journal 2 ( 2 ): 294 - 298 , 2007
N.M. Nkang, H.M. Ndifon and E.O. Edet
Agricultural Journal 2 ( 3 ): 419 - 425 , 2007
H.M. Ndifon, M.B. Onabe and N.M. Nkang
Pakistan Journal of Social Sciences 4 ( 4 ): 635 - 638 , 2007
H.M. Ndifon, R.O. Echua and N.M. Nkang
The Social Sciences 2 ( 4 ): 394 - 398 , 2007