MEHER, B. K.; HAWALDAR, I. T.; MOHAPATRA, L.; SAREA, A. M. The Impact of COVID-19 on Price Volatility of Crude Oil and Natural Gas Listed on Multi Commodity Exchange of India. International Journal of Energy Economics and Policy, [S. l.], v. 10, n. 5, p. 422–431, 2020. Disponível em: Acesso em: 30 sep. 2023.