FAMADEWA , David Adetona. The Impact of the 2019–2021 Border Closure on Nigeria’s Informal Trade: Challenges and Adaptation for Traders . International Journal of Political Science and Governance, [S. l.], v. 1, n. 1, 2026. Disponível em: https://informedlens.com/index.php/IJPSG/article/view/57. Acesso em: 17 jun. 2026.