Ihsanul Haq, Ijaz Hussain, Asif ur Rehman Khan, Muhammad Sajid and Shafqatullah Khan
Asian Journal of Plant Sciences 1 ( 4 ): 418 - 419 , 2002
Noor Rehman, Ijaz Hussain, Ghulam Nabi and Muhammad Affan Khan
Pakistan Journal of Biological Sciences 3 ( 1 ): 166 - 168 , 2000