Chantang, C., S. . Kunnavut-opas, C. . Thongeiad, L. . Sriudomsilp, and A. Kaewpradap. “Investigation of natural gas flame temperature influenced spiral port on axial burner”. Journal of Research and Applications in Mechanical Engineering, vol. 10, no. 2, Oct. 2022, pp. JRAME-22, https://ph01.tci-thaijo.org/index.php/jrame/article/view/248796.