Tarigan N, Tampubolon E. Analysis of Causes for Blade Speed Reduction Due to Speed droop in the Sweet Potato Chopping Process at PT. Hutahaean. IRA J.Tek. Mesin Dan Apl [Internet]. 2024 Dec. 30 [cited 2025 Aug. 9];3(3):17-22. Available from: http://e-journals.irapublishing.com/index.php/IRAJTMA/article/view/149