Fatih, M.F. et al. 2026. The Effect of Goods Security and Tracking System On Customer Satisfaction of PT J&T Express East Jakarta . Jurnal Ekonomi Manajemen Sistem Informasi. 6, 6 (May 2026), 4706–4715. DOI:https://doi.org/10.38035/jemsi.v6i6.8538.