Manalu, Istas Pratomo, Albertinus Daniel Siahaan, Okaria Veronika Simanjuntak, Dedy Samhaz Pardede, and David Calvin Tobing. “Utilization of GPS Data of Logistic Truck As a Delivery Reporting System”. Piston: Journal of Technical Engineering 6, no. 1 (July 16, 2022): 15–23. Accessed June 13, 2024. https://openjournal.unpam.ac.id/index.php/Piston/article/view/22433.