Zahir Ahmad Zahir, Muhammad Ateeq ur Rehman Malik and Muhammad Arshad
Journal of Biological Sciences 1 ( 5 ): 299 - 307 , 2001
Zahir Ahmad Zahir, Muhammad Ateeq ur Rahman Malik and Muhammad Arshad
Pakistan Journal of Biological Sciences 3 ( 1 ): 133 - 135 , 2000