Munthe, Mirian Jacquiline, Charloq Charloq, and Achmad Siddik Thoha. “Determinasi Kepuasan Pelanggan Dan Karakteristik Sosial Ekonomi Terhadap Willingness To Pay Untuk Air Siap Minum Di Perumda Tirtanadi Medan”. JURNAL ILMIAH EDUNOMIKA 8, no. 4 (November 10, 2024). Accessed April 20, 2026. https://jurnal.stie-aas.ac.id/index.php/jie/article/view/15504.