Gemala, Mega, Roni Saputra, Annisa Fyona, Ita Wijayanti, Fedia Restu, Ice Irawati, Adhe Aryswan, and Hengky Oktarizal. “Enhancing Domestic Wastewater Treatment: A Study on the Efficacy of Tiered Filtration and a Combined Photocatalytic Ozonation Methods”. Engineering And Technology Journal 9, no. 5 (May 2, 2024): 3893–3901. Accessed July 3, 2024. https://everant.org/index.php/etj/article/view/1234.