Amal, I. H. . (2021) “Prototipe Robot SUMO Otonom dalam Mengenali Object Musuh berbasis Sensor Ultrasonic: Autonomous SUMO Robot Prototype in Recognizing Enemy Objects based on Ultrasonic Sensor”, Indonesian Journal of Electrical Engineering and Renewable Energy (IJEERE), 1(1), pp. 21-28. doi: 10.57152/ijeere.v1i1.78.