M. K. A. MAHADI and M. G. KAMARDAN, “Optimization Cost of Transportation by Applying Linear Programming”, EKST, vol. 2, no. 1, pp. 361–366, Aug. 2022, Accessed: Jul. 18, 2024. [Online]. Available: https://publisher.uthm.edu.my/periodicals/index.php/ekst/article/view/5374