Design And Development Of Wearable Technology Using Ultrasonic Waves For Visually Impaired People. Journal of Pharmaceutical Negative Results, [S. l.], p. 4101–4106, 2023. DOI: 10.47750/pnr.2022.13.S08.518. Disponível em: https://mail.pnrjournal.com/index.php/home/article/view/5996.. Acesso em: 10 jun. 2026.