“Design and Implementation of Intelligent Mobile Robot based on Microcontroller by using Three Ultrasonic Sensors”, Int. J. Curr. Eng. Technol., vol. 7, no. 6, pp. 2051–2056, Dec. 2017, Accessed: Mar. 13, 2026. [Online]. Available: https://ijcet.evegenis.org/index.php/ijcet/article/view/2582