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Pakistan Journal of Biological Sciences 2 ( 3 ): 955 - 959 , 1999
M.Z. Rahman, Z.A. Saud, N. Absar, M.R. Karim and F. Hashinaga
Pakistan Journal of Biological Sciences 3 ( 4 ): 586 - 589 , 2000
Pakistan Journal of Biological Sciences 4 ( 4 ): 483 - 486 , 2001