Suhardi Napid, and Ahmad Bakhori. “Effect of Feed Depth on the ProcessMilling Against Surface Roughness Steel 4140 Carbide Endmill Applications”. International Journal of Health Engineering and Technology (IJHET) 3, no. 1 (May 30, 2024). Accessed November 24, 2024. https://afdifaljournal.com/journal/index.php/ijhet/article/view/210.