Muhammad Sher
Journal of Applied Sciences 2 ( 1 ): 10 - 16 , 2002
Muhammad Sher and Khalik Rashid
Journal of Applied Sciences 2 ( 5 ): 574 - 578 , 2002
Imran Razzaq and Muhammad Sher
Journal of Applied Sciences 2 ( 3 ): 416 - 421 , 2002