Sookramoon, K. “80 KW Updraft Gasifier Performance Test Using Biomass Residue Waste from Thailand Rural Areas”. Engineering, Technology & Applied Science Research 10, no. 5 (October 26, 2020): 6349–6355. Accessed January 21, 2022. https://etasr.com/index.php/ETASR/article/view/3820.