Soetopo, Antonius Adi, et al. “Analysis of Cutting Parameters Affecting the Surface Roughness Value of Amutite Steel With A 50 Mm Diameter Facemill on the Fu100 Lagoon Milling Machine Using Statistical Methods”. Global International Journal of Innovative Research, vol. 2, no. 8, Aug. 2024, pp. 1882-94, doi:10.59613/global.v2i8.284.