“Pengaruh Kualitas Pelayanan Terhadap Kepuasan Pelanggan PT JNE Kotamobagu”, Product., vol. 2, no. 5, pp. 397–402, Oct. 2021, Accessed: Aug. 06, 2026. [Online]. Available: https://ejournal.unsrat.ac.id/v3/index.php/productivity/article/view/36073