Tentua B, Tupamahu C, Silooy F. EKSPERIMENTAL STUDI VARIASI PUTARAN SPINDEL TERHADAP KEKASARAN PERMUKAAN MATERIAL BAJA ST-42. ale [Internet]. 31Oct.2023 [cited 22Dec.2024];6:15-9. Available from: https://ojs3.unpatti.ac.id/index.php/ale/article/view/10815