Ghoddousi, Parviz, and Mohammad Reza Hosseini. “A Survey of the Factors Affecting the Productivity of Construction Projects in Iran”. Technological and Economic Development of Economy 18, no. 1 (April 10, 2012): 99-116. Accessed April 24, 2024. https://journals.vilniustech.lt/index.php/TEDE/article/view/4681.