ALAM, I. A.; HAIRANI, H.; SINGAGERDA, F. S. Price Determination Model of World Vegetable and Petroleum. International Journal of Energy Economics and Policy, [S. l.], v. 9, n. 5, p. 157–177, 2019. Disponível em: https://econjournals.com/index.php/ijeep/article/view/7916. Acesso em: 8 may. 2024.