Kahvandi, Zahra, Ehsan Saghatforoush, Ahad ZareRavasan, and Christopher Preece. “Integrated Project Delivery Implementation Challenges in the Construction Industry”. Civil Engineering Journal 5, no. 8 (August 21, 2019): 1672–1683. Accessed June 26, 2025. https://civilejournal.org/index.php/cej/article/view/1490.