Junaidi J, Aswan Ritonga D. KEKERASAN MATERIAL BAJA KARBON RENDAH DENGAN METODE ROCKWELL. Jurnal Simetri Rekayasa [Internet]. 2019Dec.27 [cited 2025Jul.11];1(2):94-100. Available from: https://jurnal.harapan.ac.id/index.php/JSR/article/view/738