Wimol, M., T. Jantarasricha, S. Kunhirunbawon, and N. Suwichien. “OPTIMIZATION OF FLAME HARDENING PROCESS IN AISI 1045 CARBON STEEL USING TAGUCHI METHOD”. PSRU Journal of Industrial Technology and Engineering, vol. 3, no. 3, Dec. 2021, pp. 281-9, https://ph02.tci-thaijo.org/index.php/psru-jite/article/view/245045.