Abdul Hamid, Zulfiqar Ali Shah and Muhammad Asif
Asian Journal of Plant Sciences 1 ( 6 ): 636 - 637 , 2002
Saima Bashir, Asghar Ali, I.A. Qamar, M. Arshad, Salim Sheikh and Muhammad Asif
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Muhammad Asif, Ihsan Khaliq, Muhammad Aslam Chowdhry and Abdus Salam
Pakistan Journal of Biological Sciences 2 ( 3 ): 948 - 951 , 1999