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Biotechnology 6 ( 4 ): 561 - 566 , 2007
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Pakistan Journal of Biological Sciences 11 ( 2 ): 255 - 259 , 2008
Fazal Akbar, Fazal Hadi, Zakir Ullah and Muhammad Amir Zia
Pakistan Journal of Biological Sciences 10 ( 22 ): 4148 - 4151 , 2007