Ginting, Armansyah, and Zuhrina Masyithah. “Predictive Mapping of Surface Roughness in Turning of Hardened AISI 4340 Using Carbide Tools”. Communications in Science and Technology 9, no. 1 (July 16, 2024): 179-184. Accessed July 29, 2025. https://cst.kipmi.or.id/journal/article/view/1417.