FADHEL, Balqes; MADHAT SHAKIR AL-SOUD. A Review study on foundation above the soil containing voids; challenges and obstacles. Al-Rafidain Journal of Engineering Sciences, [S. l.], v. 4, n. 2, p. 79–88, 2026. DOI: 10.61268/c9y8h446. Disponível em: https://rjes.iq/index.php/rjes/article/view/406. Acesso em: 19 jun. 2026.