“PENCATATAN ANGKA METER AIR DI WATER TREATMENT PLANT (WTP) GRAND CIKARANG CITY BERBASIS QR CODE MELALUI SMARTHPHONE”. Jurnal Informatika SIMANTIK 3, no. 1 (September 19, 2024): 28–32. Accessed January 16, 2026. https://simantik-panca-sakti.ac.id/index.php/simantik/article/view/26.