Syed Wajahat Hussain, Muhammad Ishtiaq and Syed Asghar Hussain
Journal of Biological Sciences 1 ( 5 ): 345 - 347 , 2001
Syed Asghar Hussain, Abdur Rab Fayaz Ali Jan and Syed Asghar
Pakistan Journal of Biological Sciences 3 ( 9 ): 1377 - 1378 , 2000