Apriyadi, Darmawan, Sarovah Widiawati, Nurul Nurul, and Rosmallini Putri. “The Effect of Online Tracking Systems and Timing Accuracy on Customer Loyalty Through Customer Satisfaction at J&T Express 2024”. Jurnal Siber Multi Disiplin 3, no. 4 (March 28, 2026): 627–638. Accessed June 15, 2026. https://research.e-siber.org/JSMD/article/view/830.