N. Sultana, M.M. Rashid and S.M.J. Hossain
Pakistan Journal of Biological Sciences 4 ( 8 ): 1036 - 1037 , 2001
M.A. Khan, M.M. Rashid, M.A. Siddique, M.R. Amin and M.S. Rahman
Pakistan Journal of Biological Sciences 4 ( 12 ): 1498 - 1499 , 2001