MOHAPATRA, B. N.; MOHAPATRA, R. K.; MIRPAGAR, M.; QUERSHI, A. Ultrasonic based easy parking system based on Microcontroller. International Journal of Innovative Technology and Interdisciplinary Sciences, [S. l.], v. 3, n. 2, p. 429–434, 2020. DOI: 10.15157/IJITIS.2020.3.2.429-434. Disponível em: http://ijitis.org/index.php/ijitis/article/view/47. Acesso em: 26 feb. 2021.