Halil Nustadia, Rosman, E., Fitri Nova and Hidra Amnur 2025. IoT-Based Prepaid Water Meter System with Digital Token for PDAM Customers. JITSI : Jurnal Ilmiah Teknologi Sistem Informasi. 6, 4 (Dec. 2025), 383 -388. DOI:https://doi.org/10.62527/jitsi.6.4.513.