Trade Policy and Export Diversification in Nigeria in the years 1970-2017: A Sectoral Analysis. Entrepreneurial Business and Economics Review, Poland, v. 8, n. 1, p. 127–142, 2020. DOI: 10.15678/EBER.2020.080107. Disponível em: https://eber.uek.krakow.pl/index.php/eber/article/view/19573. Acesso em: 29 oct. 2026.