Shad K. Khalil, John G. Mexal and Leigh W. Murray
Pakistan Journal of Biological Sciences 4 ( 3 ): 365 - 370 , 2001
Shad K. Khalil, A. Wahab, A. Zaman Khan and P. Shah
Pakistan Journal of Biological Sciences 4 ( 4 ): 425 - 428 , 2001