GOVER, B.; BRADLEY, J. Measurement of Speech Privacy of Closed Rooms Using ASTM E2638 and Setting Criteria in Terms of Speech Privacy Class. Canadian Acoustics, [S. l.], v. 38, n. 3, p. 152–153, 2010. Disponível em: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2290. Acesso em: 28 mar. 2024.