KADHUM AL-SARAJ , Wissam. Flaw Evaluation in Reinforced Concrete Slabs Using Impact Acoustics Method. Journal of Engineering and Sustainable Development, Baghdad, Iraq, v. 18, n. 6, p. 77–87, 2014. Disponível em: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/877.. Acesso em: 4 jun. 2026.