Asghar Ali, M. Asghar Malik, M. Adil Choudhry, M. Khalid and M. Rafique
Pakistan Journal of Biological Sciences 2 ( 3 ): 889 - 890 , 1999
I. Khaliq, S. A. H. Shah, M. Ahsan and M. Khalid
Pakistan Journal of Biological Sciences 2 ( 3 ): 1006 - 1009 , 1999