M. Aslam, M. T. Elahi and N. Iqbal
Pakistan Journal of Biological Sciences 1 ( 1 ): 11 - 14 , 1998
M. T. Elahi, K.B. Marwat, G.K.Jehangiri and F. Ahmad
Pakistan Journal of Biological Sciences 1 ( 2 ): 117 - 119 , 1998