Hadi, Syamsul, Eddy Widiyono, Winarto, and Dedy Z. Noor. “EMS-45 Tool Steels Hardenability Experiment Using Jominy ASTM A255 Test Method”. IPTEK The Journal for Technology and Science 24, no. 1 (July 1, 2025): 7–12. Accessed January 30, 2026. https://journal.its.ac.id/index.php/jts/article/view/4792.