Muhammad Shah Zaman, Azra Quraishi, Ghulam Hassan, Raziuddin ., Sardar Ali, Abdul Khabir and Naheed Gul
Journal of Biological Sciences 1 ( 10 ): 898 - 899 , 2001
C. Din, S.M.Mehdi, M.Sarfraz, Ghulam Hassan and M.Sadiq
Pakistan Journal of Biological Sciences 4 ( 7 ): 815 - 817 , 2001