“ Effects of Heat Input and Preheating Temperature on the Microstructure and Hardness of Repairing the Heat-Affected Zone of Thermite Welded Rail Head Surface”. Indonesian Journal of Science and Technology, vol. 9, no. 2, Aug. 2024, pp. 421-40, https://ejournal.kjpupi.id/index.php/ijost/article/view/361.