Sukmilin, Apiradee, Banjong Boonchom, and Chalor Jarusutthirak. “Catalytic Ozonation using Iron-Doped Water Treatment Sludge as a Catalyst for Treatment of Phenol in Synthetic Wastewater: DOI: 10.32526/ennrj.17.2.2019.15”. Environment and Natural Resources Journal 17, no. 2 (January 28, 2019): 87–95. accessed September 11, 2026. https://ph02.tci-thaijo.org/index.php/ennrj/article/view/168385.