Kasantikul, B. (2021). Improvement Biogas Generating by the Fermenting Barrel for Biogas Production from Organic Waste for Household Use: doi: 10.14456/mijet.2022.5. Engineering Access, 8(1), 37–44. Retrieved from https://ph02.tci-thaijo.org/index.php/mijet/article/view/244773