Hussein Ali Ahmed. Effect of Iron and Steel Industry on the Gross Domestic Production in the GCC States for the Period 2010-2020: Gobb Doglas Function . Kurd. Stud. [Internet]. 2023 Dec. 31 [cited 2024 Jun. 30];11(3):817-24. Available from: http://kurdishstudies.net/menu-script/index.php/KS/article/view/2830