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اد. سعد عبد الله الكرم, د. أيمن عبد الغني حمزة, محمد عبد الله أبو الصن. impact of advances of exchange rate on scale of trade volume between Sudan and Egypt (2000-2018). wnjsr [Internet]. 2020 Mar. 1 [cited 2026 Jun. 13];(15):154-7. Available from: https://journals.wnu.edu.sd/index.php/wnjsr/article/view/141