M. A. Naeem, R. H. Qureshi, M. Aslam, R. Ahmad, N. Ahmad, A. Hussain, M. Saleem and K. Hussain
Pakistan Journal of Biological Sciences 1 ( 2 ): 111 - 114 , 1998
M. A. Naeem, R. H. Qureshi, M. Aslam and R. Ahmad
Pakistan Journal of Biological Sciences 1 ( 2 ): 87 - 91 , 1998