ปานขลิบ ฐกฤต. “Increasing the Combustion Efficiency by Using Porous Media”. Journal of Energy and Environment Technology of Graduate School Siam Technology College 1, no. 2 (December 31, 2014): 1–10. Accessed May 19, 2024. https://ph01.tci-thaijo.org/index.php/JEET/article/view/179554.