J.B.K. Asiedu, E. Asare-Bediako, K.J. Taah and J.N. Buah
International Journal of Agricultural Research 6 ( 7 ): 584 - 592 , 2011
J.B.K. Asiedu, G.C. van der Puije, K.J. Taah and V. Dovlo
International Journal of Agricultural Research 7 ( 4 ): 195 - 204 , 2012