M. S. HASSAN and A. MOHD AMIN, “Optimisation of Surface Roughness in The Cnc Milling Process”, rpmme, vol. 3, no. 1, pp. 267–277, Aug. 2022, Accessed: Aug. 15, 2026. [Online]. Available: https://periodical.uthm.edu.my/index.php/rpmme/article/view/3839