Mukhtar Ahmad Khan, Sher Mahmood Shah and M. Yasin Mirza
Pakistan Journal of Biological Sciences 2 ( 4 ): 1296 - 1298 , 1999
Mukhtar Ahmad, Sher Mahmood Shah, M. Yasin Mirza and Naazar Ali
Pakistan Journal of Biological Sciences 3 ( 1 ): 144 - 146 , 2000