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External Debt and Economic Growth: Two-Step System GMM Evidence for Sub-Saharan Africa Countries. International Journal of Business, Economics and Management, [S. l.], v. 6, n. 1, p. 39–48, 2019. DOI: 10.18488/journal.62.2019.61.39.48. Disponível em: https://archive.conscientiabeam.com/index.php/62/article/view/1206. Acesso em: 6 aug. 2026.