MUHAMAD WAFI AL-SHAMRI; ZEINA HAMZA GHALI. The hexagonal diffraction approach and its course in improving product quality and reducing costs: applied research in the General Company for Southern Cement, Kufa Cement Factory. Iraqi Journal for Administrative Sciences, كربلاء، جمهورية العراق, v. 12, n. 48, p. 274–319, 2024. DOI: 10.71207/ijas.v12i48.2831. Disponível em: https://mail.journals.uokerbala.edu.iq/index.php/ijas/article/view/2831. Acesso em: 19 apr. 2026.