Abdul Al- Jabbar Hadi A, Mokhalad Alhaydary M. CALCULATIONS OF EARTHWORK QUANTITY BY USING CIVIL 3D. J. eng. sustain. dev. 2018;22(6):13-20. Accessed June 6, 2026. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/340