W. I. WA, M. Shaiful, M. Shamsunarnie, Z. Zainuddin, and M. Fuad, “Genetic Algorithm for Vehicle Routing Problem with Backhauls”, jst, vol. 4, no. 1, Jul. 2012, Accessed: Jul. 18, 2024. [Online]. Available: https://publisher.uthm.edu.my/ojs/index.php/JST/article/view/463