SHAMSUDDIN, N.; ABDUL JAMIL, M. M. Smart Blind Stick. Evolution in Electrical and Electronic Engineering, [S. l.], v. 2, n. 2, p. 182–190, 2021. Disponível em: https://publisher.uthm.edu.my/periodicals/index.php/eeee/article/view/3629. Acesso em: 28 jun. 2022.