Hasan, M. K., M. R. Ali, C. K. Saha, M. M. Alam, and M. E. Haque. “Combine Harvester: Impact on Paddy Production in Bangladesh”. Journal of the Bangladesh Agricultural University, vol. 17, no. 4, Dec. 2019, pp. 583–591, https://jbau.bau.edu.bd/index.php/home/article/view/532.