د. صلاح محمد ابراهيم أحمد, and محمد مسعود محمد ادريس. 2016. “The Impact of External Cash Flows on Economic Growth in Sudan During the Period (1990-2014)”. White Nile Journal for Studies and Research, no. 8 (September):8-31. https://journals.wnu.edu.sd/index.php/wnjsr/article/view/197.