Sangtong-Ngam, K., and M.H. Narasingha. “Kinetic Study of Thai-Lignite Char Gasification Using the Random Pore Model”. Science & Technology Asia 13, no. 3 (October 28, 2015): 16–26. Accessed May 4, 2024. https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/41429.