WARNOCK, A.; CHU, W. Speech levels in open plan offices. Canadian Acoustics, [S. l.], v. 30, n. 3, p. 38–39, 2002. Disponível em: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1443. Acesso em: 28 mar. 2024.