Supriadi, Agus, Ediman Ginting Suka, and Roniyus Marjunus. “Analysis of the Effect of Saltwater (NaCl) Solution Concentration During the Quenching Process on the Microstructure and Hardness of Medium Carbon Steel”. Journal of Energy, Material, and Instrumentation Technology 6, no. 1 (February 28, 2025): 1–8. Accessed October 24, 2025. https://jemit.fmipa.unila.ac.id/index.php/jurnal/article/view/52.