Tursunovich, T. A., and M. S. M. o`g`li. “Improving the Reliability of Tractor Spline Shafts During Heat Treatment”. American Journal of Engineering , Mechanics and Architecture (2993-2637), vol. 1, no. 3, May 2023, pp. 9-12, http://grnjournal.us/index.php/AJEMA/article/view/174.