WOJAS, M. Krajowy system certyfikacji personelu badań nieniszczących - Historia; The national polish system for certification of NDT personnel - History. Welding Technology Review, [S. l.], v. 86, n. 11, 2014. DOI: 10.26628/wtr.v86i11.12. Disponível em: https://pspaw.pl/pspaw/article/view/12. Acesso em: 22 dec. 2024.