zahow SM. Innovation and its impact on manufacturing level for a selected sample of the world’s countries for period 2013-2017. Tikrit J. Admin. Econ. Sci. [Internet]. 2020 Dec. 31 [cited 2026 Mar. 6];16(52, 3):175-90. Available from: https://www.tjaes.org/ojs/index.php/tjaes/article/view/1829