Saddam Hamada Hneet, Dr. Nizar N Ismail. “To What Extent Have Engineers Working on Government Projects in Salah Al-Din Governorate Assimilated Terms of FIDIC Red Book”. Design Engineering, no. 1, Apr. 2022, pp. 3096 -09, http://thedesignengineering.com/index.php/DE/article/view/9377.