Oetama S, Susanto H, Rizwannur W. Effect Of Online Tracking System And Delivery Timeliness On Customer Satisfaction (Case Study On J & T Express Sampit). IJSTM [Internet]. 2024 Jul. 30 [cited 2026 May 7];5(4):962-9. Available from: https://ijstm.inarah.co.id/index.php/ijstm/article/view/1157