M.R. Zaman, M.K. Roy and N. Akhter
Journal of Applied Sciences 5 ( 9 ): 1632 - 1635 , 2005
M.R. Zaman, D.N.R. Paul, N. Akhter, M.H. Howlader and M.S. Kabir
Journal of Applied Sciences 6 ( 2 ): 243 - 246 , 2006