“SISTEM INFORMASI RETRIBUSI ALAT PEMADAM KEBAKARAN DI DINAS PENCEGAH DAN PEMADAM KEBAKARAN KOTA MEDAN BERBASIS MOBILE”. JOURNAL OF SCIENCE AND SOCIAL RESEARCH 7, no. 4 (November 12, 2024): 2002–2008. Accessed April 12, 2026. https://jurnal.goretanpena.com/index.php/JSSR/article/view/2317.