F. Islam, M. R. Karim, M. Shahjahan, M. O. Hoque, M. Robiul Alam and M. Akhtar Hossain
Asian Journal of Plant Sciences 1 ( 6 ): 616 - 617 , 2002
M. R. Karim and F. Hashinaga
Pakistan Journal of Biological Sciences 4 ( 4 ): 483 - 486 , 2001