VOICE GUIDANCE FOR BLIND PEOPLE WITH ULTRASONIC OBSTACLE AVOIDANCE. International Journal of Multidisciplinary Research and Explorer, [S. l.], v. 4, n. 3, p. 33–47, 2024. DOI: 10.70454/IJMRE.2024.40303. Disponível em: https://ijmre.com/index.php/IJMRE/article/view/2. Acesso em: 19 dec. 2025.