ARIYO, Aboyade Sunday. Trade across frontiers: an overview of International trade before the advent of modern economic system in Nigeria. Historia Actual Online, [S. l.], n. 35, p. 53–60, 2022. DOI: 10.36132/hao.v0i35.1095. Disponível em: https://historia-actual.org/Publicaciones/index.php/hao/article/view/1095.. Acesso em: 23 jun. 2025.