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H.M. Salim, M.A. Halim, N. Akter and M.H. Rashid
Pakistan Journal of Biological Sciences 7 ( 5 ): 674 - 678 , 2004
G.K. Debnath, A.K.M.H. Kober, T. Chanda, M.A. Hoque and M.A. Halim
Pakistan Journal of Biological Sciences 6 ( 10 ): 945 - 947 , 2003