“Comparison Quality Analysis of Clean Water and Laundry Water in Bogor, Jakarta, Bekasi City and Bekasi Regency”. International Journal of Engineering Research and Advanced Technology (ijerat) (E-ISSN 2454-6135) DOI: 10.31695 IJERAT, vol. 5, no. 3, Mar. 2019, pp. 48-54, https://doi.org/10.31695/IJERAT.2019.3396.