Harahap, L. M., Ambarita, C. M. B., Cahyati, D. U., Sihotang, M. M., Situmorang, R., & Silaban, M. Y. (2023). Literature Study: Comparison of the Effectiveness of the Stepping Stone Method and the Modified Distribution (MODI) Method for Optimizing Transportation Costs. Economic: Journal Economic and Business, 2(3), 72–76. https://doi.org/10.56495/ejeb.v2i3.612