PAPI, G. The regional approach towards the expansion of world trade. PSL Quarterly Review, [S. l.], v. 6, n. 27, 2014. DOI: 10.13133/2037-3643/12745. Disponível em: https://rosa.uniroma1.it/rosa04/psl_quarterly_review/article/view/12745. Acesso em: 2 may. 2024.