AMAN, Abdulkadir Wahab, Feride GÖNEL, and Hasan KARADUMAN. “Turkey - Africa Trade: A Gravity Model Estimation of Determinants”. Journal of Economics Library 4, no. 4 (December 18, 2017): 561–571. Accessed July 7, 2024. https://journals.econsciences.com/index.php/JEL/article/view/1535.