ET. AL., D. T. J. , . Intelligent Door Knocking Security System Using IOT. Turkish Journal of Computer and Mathematics Education (TURCOMAT), [S. l.], v. 12, n. 2, p. 2540–2543, 2021. Disponível em: https://www.turcomat.org/index.php/turkbilmat/article/view/2205. Acesso em: 4 jun. 2025.