Sulistiyono, B., Y. S. Irawan, A. Suprapto, and R. Soenoko. “The Comparison Pack Carburizing-Nitriding SUS 316 With Gas Type Welding Grade and Ultra High Purity ”. EUREKA: Physics and Engineering, no. 3, May 2021, pp. 119-26, doi:10.21303/2461-4262.2021.001839.