Sarvat Nisar and Mohammad Ashraf
Pakistan Journal of Biological Sciences 2 ( 2 ): 445 - 448 , 1999
Samia Rashid, Muhammad Farhan Qureshi and Mohammad Ashraf
Pakistan Journal of Biological Sciences 2 ( 3 ): 720 - 721 , 1999
Mohammad Ashraf, Nasim Akhtar, Firdous Tahira and Faiz-ul-Hassan Nasim
Pakistan Journal of Biological Sciences 2 ( 4 ): 1594 - 1597 , 1999