Umakirthika, D., P. Pushparani, and M.Valan Rajkumar. “Internet of Things in Vehicle Safety – Obstacle Detection and Alert System”. International Journal of Engineering and Computer Science 7, no. 02 (February 5, 2018): 23540–23551. Accessed April 25, 2024. http://ijecs.in/index.php/ijecs/article/view/3952.