Kualitas Pelayanan Pengujian Kendaraan Bermotor Di Unit Pelayanan Terpadu (UPT) Pengujian Kendaraan Bermotor (PKB) Kabupaten Dairi. AFJISH. 2025;1(3):89-100. Accessed April 27, 2026. https://journal.salahuddinal-ayyubi.com/index.php/AFJISH/article/view/516