Asif Ali Khan Gandapore, Syed Mehboob Hasnain and Obaid Ullah Sayal
Pakistan Journal of Biological Sciences 2 ( 1 ): 134 - 136 , 1999
Muhammad Safdar Baloch, Obaid Ullah Sayal and Muhammad Zubair Sulemani
Pakistan Journal of Biological Sciences 2 ( 2 ): 386 - 389 , 1999
Naheed Akhtar Sayal, Obaid Ullah Sayal and Shakeel Ahmad Jatoi
Pakistan Journal of Biological Sciences 2 ( 3 ): 1080 - 1082 , 1999