S. Shahid Shaukat, Imran A. Siddiqui, Maria Hamid, Ghazala Habib Khan and Syed Azhar Ali
Pakistan Journal of Biological Sciences 5 ( 6 ): 669 - 671 , 2002
S. Shahid Shaukat, Imran Ali Siddiqui, Zarina Ali and Maria Hamid
Pakistan Journal of Biological Sciences 6 ( 9 ): 854 - 859 , 2003