Junaidi, Junaidi, and Din Aswan Ritonga. “KEKERASAN MATERIAL BAJA KARBON RENDAH DENGAN METODE ROCKWELL”. Jurnal Simetri Rekayasa 1, no. 2 (December 27, 2019): 94–100. Accessed February 7, 2026. https://jurnal.harapan.ac.id/index.php/JSR/article/view/738.