Yasin, Moch, and Vincent F. Yu. “RETRACTION NOTICE TO : A Simulated Annealing Heuristic For The Green Vehicle Routing Problem”. Systemic: Information System and Informatics Journal 1, no. 2 (December 1, 2015): 17–21. Accessed May 5, 2024. https://jurnalsaintek.uinsby.ac.id/index.php/SYSTEMIC/article/view/276.