Ahuja, S.S., Rikhi, P. and Dogra, B. (2007) “Economics of Harvesting and Threshing of Wheat and Paddy in Northern India”, Journal of Agricultural Engineering, 44(2). Available at: https://epubs.icar.org.in/index.php/JAE/article/view/14500 (Accessed: 6 June 2026).