NAJEEB ABDULLAH, M. Effect of Depth and Location of cracks on the natural. Al-Rafidain Engineering Journal (AREJ), [S. l.], v. 15, n. 1, p. 27–36, 2007. DOI: 10.33899/rengj.2007.44938. Disponível em: https://jamh.uomosul.edu.iq/index.php/arej/article/view/30726. Acesso em: 8 sep. 2025.