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Journal of Applied Sciences 2 ( 11 ): 1002 - 1004 , 2002
Badar Naseem Siddiqui, Muhammad Zakaria Yousuf Hassan, Fawad Asif, Samra Iqbal, M. Shahbaz Bajwa and Nadeem Ashraf Mali
Journal of Applied Sciences 3 ( 3 ): 182 - 184 , 2003