[1]
M. J. Firmansyah and K. Kusdiyanto, “The Influence of Cleanliness, Water Flow, Complaint Response, and Network Maintenance on Customer Satisfaction Levels at PDAM Tirta Makmur, Sukoharjo Regency”, DIJEFA, vol. 6, no. 4, pp. 3607–3619, Sep. 2025.