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M. A. Rahman, A. Khair, B.K. Bala, A.K.M. S. Islam and F. M. Rabbi
Pakistan Journal of Biological Sciences 4 ( 12 ): 1543 - 1546 , 2001
M. A. Rahman, A.K.M.S. Islam, A. Khair and B.K. Bala
Pakistan Journal of Biological Sciences 5 ( 1 ): 84 - 87 , 2002