Lhaochai S, Neeratanaphan L. The efficiency of up-flow anaerobic sludge blanket and internal circulation wastewater treatment systems. Asia Pac J Sci Technol [internet]. 2017 Apr. 19 [cited 2026 Feb. 21];16(8):981-92. available from: https://so01.tci-thaijo.org/index.php/APST/article/view/83623