Aiwa, Toto, Husman, and Zaldy Kurniawan. 2025. “Optimization of Surface Roughness in CNC Turning of SS 304 Stainless Steel Using Respon Surface Methodology ”. Jurnal Rekayasa Mesin 20 (3):393-400. https://doi.org/10.32497/jrm.v20i3.7169.