“Analisa Kepuasan Pelanggan terhadap Pelayanan Jasa Pengiriman SPX Express dengan Metode Importance Performance Analysis (IPA)” (2026) Jurnal Prima Manajemen, 1(3), pp. 511–521. Available at: https://journal.al-afif.org/index.php/jpm/article/view/828 (Accessed: 15 February 2026).