AN ULTRASONIC SENSING SYSTEM FOR ASSISTING VISUALLY IMPAIRED PERSON. Jurnal Teknologi, [S. l.], v. 78, n. 7-4, 2016. DOI: 10.11113/jt.v78.9433. Disponível em: https://journals.utm.my/jurnalteknologi/article/view/9433.. Acesso em: 29 jul. 2024.