AwadAlla, Widad Mahmoud Mohammed. “Using the NARDL Model to Test the Twin Deficits Hypothesis in Sudan: An Econometric Study (2007-2021)”. Ibn Khaldoun Journal for Studies and Researches 5, no. 10 (October 1, 2025). Accessed May 30, 2026. https://benkjournal.com/benkj/article/view/1616.