S. . M. Hassen Al-Tmeemy, “THE IMPACT OF INCOMPETENT CONTRACTOR ON THE PROJECT SCHEDULE”, J. eng. sustain. dev., vol. 21, no. 3, pp. 87–101, May 2017, Accessed: Jun. 05, 2026. [Online]. Available: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/536