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Pakistan Journal of Biological Sciences 2 ( 1 ): 199 - 200 , 1999
Asia Riaz, Muhammad Aslam and Nazia Suleman
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Nazia Suleman, Muhammad Aslam and Asia Riaz
Pakistan Journal of Biological Sciences 3 ( 6 ): 1029 - 1032 , 2000
Muhammad Aslam, Nazia Suleman, Asia Riaz, Abdul Rehman and Qamar Zia
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