Nur Salim, Ahmad, Imam syafi’i, and Moh. Arifin. “Pengaruh Kualitas Pelayanan (O-Ranger Mobile), Ketepatan Waktu, Tarif Pengiriman Terhadap Kepuasan Pelanggan”. Jurnal Ilmiah Ecobuss 12, no. 1 (March 12, 2024): 51-60. Accessed October 8, 2024. https://ejournal.upm.ac.id/index.php/ecobuss/article/view/1858.