BEHAR, A.; WONG, W. Testing and rating of hearing protector devices - A real headache. Canadian Acoustics, [S. l.], v. 39, n. 3, p. 104–105, 2011. Disponível em: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2432. Acesso em: 21 apr. 2024.