Anhar Khalid, Muhammad Kasim. Analysis of Steel Hardness on Crowbars in the Hardening Process with Variations of Cooling Media. IJELS [Internet]. 2025 Feb. 28 [cited 2026 Aug. 31];3(2):1819-26. Available from: https://www.journal.multitechpublisher.com/index.php/ijels/article/view/3453