Daniel Hailemariam Kassa. “A Road Trafic Speed-Accidents Optimization Model”. International Journal of Emerging Trends in Science and Technology 3, no. 12 (December 31, 2016): 4919–4922. Accessed January 31, 2025. http://igmpublication.com/ijetst.in/index.php/ijetst/article/view/1384.