Simeen Mansoor and Farzana N. Naqvi
Pakistan Journal of Biological Sciences 3 ( 10 ): 1550 - 1552 , 2000
Simeen Mansoor, F.N. Naqvi, and T. Salimullah
Pakistan Journal of Biological Sciences 5 ( 10 ): 1063 - 1066 , 2002