GODFREY, R. D. An easy to use model to aid in the acoustic design of classrooms. Canadian Acoustics, [S. l.], v. 30, n. 3, p. 44–45, 2002. Disponível em: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1446. Acesso em: 23 apr. 2024.