Martanto and Permatahati, A.D.P. 2025. A Predictive Model for PDAM Water Pipe Network Repair Costs Due to Corrosion: Statistical Correlation between Raw Water Quality (pH, Total Dissolved Solids) Data from the Ministry of PUPR and Non-Revenue Water (NRW) Index. Chemistry Journal (CJ). 2, 1 (Jun. 2025), 1–9. DOI:https://doi.org/10.70076/cj.v2i1.140.