S.Shahida Perveen, T.M. Qaisrani, S. Bhutta, Riffat Perveen and S.H.M.Naqvi
Journal of Biological Sciences 1 ( 7 ): 587 - 590 , 2001
S. Shahida Perveen, T.M.Qaisrani, S.Amin, R.Perveen and S.H.M.Naqvi
Journal of Biological Sciences 1 ( 6 ): 496 - 500 , 2001