Sihombing, Denny Jean Cross. “Enhancing Delivery Efficiency in Cargo Companies through Agile-Based Scheduling Apps”. Jurnal Ekonomi 13, no. 01 (March 27, 2024): 2364–2373. Accessed December 5, 2024. https://ejournal.seaninstitute.or.id/index.php/Ekonomi/article/view/4249.