Purnomo, Gito, Fenoria Putri, and Sairul Effendi. “PENGARUH QUENCHING TERHADAP KEKERASAN MATERIAL BAJA JIS SUP 9”. MACHINERY: Jurnal Teknologi Terapan 1, no. 1 (August 31, 2020): 62–70. Accessed May 8, 2024. https://jurnal.polsri.ac.id/index.php/machinery/article/view/2781.