Saiyem, M. A., S. A. Sabur, M. A. Khan, M. F. Begum, M. M. Hassan, and M. I. Hossain. “Economic Safety Margin of Bombax Ceiba Production in Selected Areas of Bangladesh”. Journal of the Bangladesh Agricultural University, vol. 19, no. 3, Sept. 2021, pp. 371–378, doi:10.5455/JBAU.53211.