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Journal of Applied Sciences 2 ( 10 ): 945 - 947 , 2002
Muhammad Yaseen, Nisar Ahmad, Abdul Razzaq and Nasir Mahmood
Pakistan Journal of Biological Sciences 2 ( 2 ): 357 - 359 , 1999
Rozina M. Ali, Tayyab Husnain, Syed Sarfraz Hussain, Nasir Mahmood and Sheikh Riazuddin
Pakistan Journal of Biological Sciences 7 ( 8 ): 1371 - 1375 , 2004