محمد علي شيلان, and حمد سمايل تحسين. “Towards a Theory of the Role in Civil Contracts (Analytical and Comparative Study)”. Academic Journal of Nawroz University 12, no. 4 (September 24, 2023): 168–186. Accessed July 3, 2024. https://journals.nawroz.edu.krd/index.php/ajnu/article/view/790.