Laundry wastewater characteristics and their relationship with river water quality as an indicator of water pollution. Case study: Code Watershed, YogyakartaGalih Dwi Jayanto, Margaretha Widyastuti and M. Pramono HadiE3S Web Conf., 325 (2021) 02011DOI: https://doi.org/10.1051/e3sconf/202132502011