Karim Kasim, Kartika, 		M. Wantu, Sastro, 		Ilato, Rosman, AND 		Abdussamad, Juriko.
" Grey Water and Black Water Wastewater Policy in Improving the Quality of Environmental Management in Gorontalo City, Indonesia" <em>Iapa Proceedings Conference</em> [Online], (21 November 2024)