D.K. Biswas, M.M. Haque, A. Hamid, J.U. Ahmed and M.A. Rahman
Journal of Agronomy 1 ( 2 ): 83 - 85 , 2002
D.K. Biswas, M.M. Haque, A. Hamid and J.U. Ahmed
Pakistan Journal of Biological Sciences 5 ( 2 ): 173 - 176 , 2002