Kumar, S., M. Majeedullah, A. B. Buriro, and . Rohibullah. “Autonomous Navigation and Real Time Mapping Using Ultrasonic Sensors in NAO Humanoid Robot”. Engineering, Technology & Applied Science Research 12, no. 5 (October 2, 2022): 9102–9107. Accessed June 30, 2024. https://etasr.com/index.php/ETASR/article/view/5180.