ET. AL., K. S. . Smart Safety Helmet in Coal Mining Using Arduino. Turkish Journal of Computer and Mathematics Education (TURCOMAT), [S. l.], v. 12, n. 11, p. 5481–5486, 2021. DOI: 10.17762/turcomat.v12i11.6778. Disponível em: https://turcomat.org/index.php/turkbilmat/article/view/6778. Acesso em: 28 apr. 2024.