WELBOURNE, E. R. Motor Vehicle Noise Programmes in the Ministry of Transport. Canadian Acoustics, [S. l.], v. 2, n. 2, p. 4–7, 1974. Disponível em: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/367. Acesso em: 22 feb. 2025.