Ferdian SR, Rajagukguk JR. Analisis Pengaruh Variasi Kecepatan Spindel Terhadap Kekasaran Permukaan Material Scr420h Hasil Pemesinan CNC Turning Mazak Quick Turn Smart 250. SJRI [Internet]. 2026 Jul. 31 [cited 2026 Aug. 18];5(7):3528-45. Available from: https://ejournal.nusantaraglobal.ac.id/index.php/sentri/article/view/6974