S, Rita Ambarwati, Widyo Nugroho, Wiwik Sulistiyowati, and Kusno Kusno. “Manajemen Operasional Utilitas Air Minum Perpipaan Dalam Pengendalian Non-Revenue Water”. Umsida Press (November 28, 2024): 1–152. Accessed July 1, 2025. https://press.umsida.ac.id/index.php/umsidapress/article/view/978-623-464-120-2.