FEBRIANTO, F. ISIS Energy Sector As Material Capabilities In Establishing Islamic State Based On Robert W. Cox Approach. Journal of International Studies on Energy Affairs, [S. l.], v. 2, n. 2, p. 139–147, 2020. DOI: 10.51413/jisea.Vol2.Iss2.2021.139-147. Disponível em: https://jisea.universitaspertamina.ac.id/index.php/jisea/article/view/24. Acesso em: 26 jun. 2022.