Thepubon, T., P. Choeisai, K. Choeisai, and K. Syutsubo. “Treating Tapioca Starch Industrial Wastewater Using Two-Phase Multi-Staged Up-Flow Anaerobic Sludge Blanket (MS-UASB): 10.32526/Ennrj/21/202200210”. Environment and Natural Resources Journal, vol. 21, no. 1, Jan. 2023, pp. 78-89, https://ph02.tci-thaijo.org/index.php/ennrj/article/view/247924.