ÇELİK, G.; ABUT, Y. Development of Accessible Pedestrian Signals (APS) with Piezoelectricity. International Conference on Frontiers in Academic Research, [S. l.], v. 1, p. 506–510, 2023. Disponível em: https://as-proceeding.com/index.php/icfar/article/view/153. Acesso em: 27 jul. 2024.