Ramadhani, Alfina Nur, Nur Isna Inayati, and Iwan Fakhruddin. 2025. “Analysis of Delivery Service Rates Based on Postal Code and Type of Service at PT POS Indonesia KCU Purwokerto”. Proceedings Series on Social Sciences & Humanities 26 (September):12-16. https://conferenceproceedings.ump.ac.id/pssh/article/view/1802.