BEHAR, A.; SHANAHAN, D. The new CSA Z94-2 standard hearing protection devices - Performance, selection, care and use. Canadian Acoustics, [S. l.], v. 30, n. 3, p. 108–108, 2002. Disponível em: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1478. Acesso em: 22 may. 2022.