Triono B, Shaleh M, Mambrasari FRK. Analysis of Micro Structure and Medium Hardness of Carbon Steel Isse Introduction Water, Oil and Air in the Hardening Process Using Cooling Media. ISSE [Internet]. 2023 Jun. 23 [cited 2026 Jan. 8];3(3):7-13. Available from: https://ejournalisse.com/index.php/isse/article/view/59