“Delay–Cost Analysis for a Section of Baghdad–Kirkuk Highway”, J. eng. sustain. dev., vol. 15, no. 4, pp. 227–240, Dec. 2011, Accessed: Jul. 22, 2024. [Online]. Available: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1321