SEDDEQ, H. S. Acoustics of suspended ceilings and speech privacy. Canadian Acoustics, [S. l.], v. 40, n. 4, p. 23–28, 2012. Disponível em: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2579. Acesso em: 28 mar. 2024.