KELSALL, T. Acoustics standards activity in Canada 2007 update and invitation to participate. Canadian Acoustics, [S. l.], v. 35, n. 4, p. 31–34, 2007. Disponível em: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1978. Acesso em: 19 jan. 2022.