R. S. P. Putra, P. de Rozari, and . P. Soetedjo, “Water Pollution Study and its Control Strategies in the Boentuka Sub-watershed, South Timor Regency, Timur Nusa Tenggara Province”, jhsss, vol. 4, no. 1, pp. 21–41, Jan. 2022, doi: 10.32996/jhsss.2022.4.1.3.