M. Qasim, Asif Khan, Himayatullah and Rahim Din
Journal of Biological Sciences 1 ( 2 ): 78 - 79 , 2001
Himayatullah Khan, Khalil Ahmad, M. Qasim and M. Ayub
Journal of Biological Sciences 1 ( 2 ): 46 - 48 , 2001