ALMAIRY, Sidahmed; RAHBAR, Mohammad. The impact of External Trade on Foreign-Exchange Reserves in Sudan. International Journal of Formal Sciences: Current and Future Research Trends, Jordan, v. 19, n. 1, 2025. Disponível em: https://ijfscfrtjournal.isrra.org/Formal_Sciences_Journal/article/view/319. Acesso em: 21 sep. 2025.