RYNONE, W.; SARKADY, A. Non-destructive testing via standard laboratory test equipment. Canadian Acoustics, [S. l.], v. 19, n. 1, p. 25–31, 1991. Disponível em: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/629. Acesso em: 4 may. 2026.