BECKMAN, Jayson; NIGATU, Getachew. Do Political Factors Influence U.S. Crude Oil Imports?. International Journal of Energy Economics and Policy, [S. l.], v. 11, n. 4, p. 288–297, 2021. Disponível em: https://mail.econjournals.com/index.php/ijeep/article/view/11238. Acesso em: 23 dec. 2024.