LI, Yanqi. A Review of Research on Detection Methods for Internal Defects in Concrete. Frontiers in Science and Engineering, [S. l.], v. 4, n. 2, p. 49–54, 2024. DOI: 10.54691/ke17jk05. Disponível em: https://bcpublication.org/index.php/FSE/article/view/5992. Acesso em: 22 aug. 2026.