Himayat Ullah Khan, Muhammad Ayub, Muhammad Qasim, Muhammad Subhan and Rahm Din
Journal of Biological Sciences 1 ( 2 ): 65 - 66 , 2001
Muhammad Subhan, Himayat Ullah Khan and Riaz-ud-Din Ahmad
Journal of Biological Sciences 1 ( 3 ): 120 - 123 , 2001