Syaiful S. The Effect of ST 37 Steel Roughness in The Turning Process with Oil Cooling Media to Variation of Spindle Speed and Type of Tools: Pengaruh Kekasaran Baja ST 37 pada Proses Pembubutan dengan Media Pendingin Oli Terhadap Variasi Kecepatan Spindle dan Jenis Pahat. satera [Internet]. 2023 Aug. 31 [cited 2026 Aug. 13];1(1):70-8. Available from: https://journal.akom-bantaeng.ac.id/index.php/jstt/article/view/12