Ahmad, D. (2012) “Development of a tractor-pulled motion resistance test rig for traction studies on towed narrow wheels”, International Journal of Agricultural and Biological Engineering, 4(4), pp. 21–27. Available at: https://www.ijabe.migration.pkpps06.publicknowledgeproject.org/index.php/ijabe/article/view/541 (Accessed: 27 February 2026).