ABOKE, SIMISOLA JANET. Nigeria Federalism and counterproductive effect: Mediating the role of confederal state. International Journal of Educational Excellence and Innovation, india, v. 1, n. 01, p. 15–30, 2024. Disponível em: https://universalscholars.org/index.php/ijeei/article/view/3.. Acesso em: 3 nov. 2025.