A. K. Saha, M. Khan, G. Nahar and F. Yesmin
Pakistan Journal of Biological Sciences 10 ( 1 ): 178 - 181 , 2007
G. Nahar, A. J. Howlader and R. Rahman
Pakistan Journal of Biological Sciences 9 ( 13 ): 2478 - 2482 , 2006