Sobia Chohan, J. H. Mirza, A. S. Shakir, R.Perveen and A. Khalid
Pakistan Journal of Biological Sciences 2 ( 3 ): 996 - 997 , 1999
Nasim Begum, Kashif Zeeshan Alvi, M. I. Haque, Muhammad Usman Raja and Sobia Chohan
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