“SISTEM INFORMASI ANTRIAN PROGRESIF PADA BADAN PENGELOLAAN PAJAK DAN RETRIBUSI DAERAH UPT PPD MEDAN SELATAN”. JOURNAL OF SCIENCE AND SOCIAL RESEARCH 6, no. 3 (October 16, 2023): 663–668. Accessed August 4, 2026. https://goretanpena.com/jurnal/index.php/JSSR/article/view/1471.