Bayazit, Zeynep, and Elif Guneren Genc. “An Analysis of Reciprocal Influence Between Advertising Expenditures and Gross Domestic Product”. International Journal of Economics and Financial Issues 9, no. 2 (March 3, 2019): 41–47. Accessed March 28, 2024. https://www.econjournals.com/index.php/ijefi/article/view/7537.