Flaw Evaluation in Reinforced Concrete Slabs Using Impact Acoustics Method. Journal of Engineering and Sustainable Development, [S. l.], v. 18, n. 6, p. 77–87, 2014. Disponível em: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/877.. Acesso em: 3 jul. 2024.