ZAKARIA, Z.; SHAMSUDDIN, S. Causality Relationship between Crude Oil Variables and Budget Variables in Malaysia. International Journal of Energy Economics and Policy, [S. l.], v. 7, n. 2, p. 132–138, 2017. Disponível em: https://www.econjournals.com/index.php/ijeep/article/view/4187. Acesso em: 22 jun. 2024.