LENKOVA, O. V. Improvement of the Methodology for the Justification of Retail Prices for Oil Products. International Journal of Energy Economics and Policy, [S. l.], v. 7, n. 2, p. 367–373, 2017. Disponível em: https://econjournals.com/index.php/ijeep/article/view/4601. Acesso em: 15 aug. 2022.