DN Sharma, DP Kataria, and VP Bahl. “On Farm Trials of Tractor Drawn Multicrop Ridge-Furrow and Flat Bed Seeding Machine for Rain Fed and Irrigated Conditions”. Journal of Agricultural Engineering (India) 38, no. 1 (March 31, 2001): 24–33. Accessed June 4, 2026. https://pub.isae.in/index.php/jae/article/view/3851.