Usman, Halima, and Omoniyi Raymondjoy Obafemi. “Enhancing Transportation Efficiency in Sokoto State Metropolis Through Vehicle Routing Problem Optimization”. International Journal of Science for Global Sustainability 10, no. 3 (October 31, 2024): 160–166. Accessed April 22, 2026. https://fugus-ijsgs.com.ng/index.php/ijsgs/article/view/716.