, A. H. C. Voice Based Navigation System For Blind People Using Ultrasonic Sensor. International Journal on Recent and Innovation Trends in Computing and Communication, [S. l.], v. 3, n. 6, p. 4117–4122, 2015. DOI: 10.17762/ijritcc.v3i6.4603. Disponível em: https://ijritcc.org/index.php/ijritcc/article/view/4603. Acesso em: 1 jul. 2024.