A. Guha Neogi, S. Mounika, S. Kalyani, and S. A. Yogananda Sai, “A Comprehensive Study of Vehicle Routing Problem With Time Windows Using Ant Colony Optimization Techniques”, IJET, vol. 7, no. 2.32, pp. 80–85, May 2018, doi: 10.14419/ijet.v7i2.32.13532.