Zamarrud Tajuddin, S. Shahid Shaukat and Imran A. Siddiqui
Pakistan Journal of Biological Sciences 5 ( 8 ): 866 - 868 , 2002
S. Shahid Shaukat, Zamarrud Tajuddin and Imran A. Siddiqui
Pakistan Journal of Biological Sciences 6 ( 3 ): 225 - 230 , 2003