“Metode Customer Satisfaction Index (CSI) dan QRCode Pada Aplikasi Penjualan Produk Alat Elektronik PT. Metro Cash & Credit Medan ” (2025) SEMINAR NASIONAL MULTI DISIPLIN ILMU (SENADIMU), 1(1), pp. 524–536. Available at: https://senadimu.potensi-utama.org/index.php/home/article/view/116 (Accessed: 12 October 2026).