Duangjaiboon, Krittidej. “ECONOMIC IMPACT OF FUEL PELLET PRODUCTION FROM THE SEWAGE SLUDGE”. Journal of Energy and Environment Technology of Graduate School Siam Technology College 8, no. 1 (June 16, 2021): 42–52. Accessed December 10, 2024. https://ph01.tci-thaijo.org/index.php/JEET/article/view/244285.