M. A. Rahman, S.M. Nurul Amin, G. C. Haidar and M. A. Mazid
Pakistan Journal of Biological Sciences 3 ( 4 ): 564 - 567 , 2000
G. C. Haldar and S.M. Nurul Amin
Pakistan Journal of Biological Sciences 8 ( 2 ): 307 - 313 , 2005