KUSMAYADI, D.; ABDULLAH, Y.; FIRMANSYAH, I. Analysis of Gas, Oil, and Coal Company Performance during Pandemic of Covid-19: A Case Study of Indonesia. International Journal of Energy Economics and Policy, [S. l.], v. 12, n. 1, p. 23–31, 2022. DOI: 10.32479/ijeep.11944. Disponível em: https://www.econjournals.com/index.php/ijeep/article/view/11944. Acesso em: 12 jul. 2024.