NUGROHO, Fathul; SYAIFUDIN, Noor. Macroeconomic Energy Efficiency Portfolio Model of Indonesia. Hasanuddin Economics and Business Review, [S. l.], v. 1, n. 1, p. 5–16, 2017. DOI: 10.26487/hebr.v1i1.1161. Disponível em: http://pasca.unhas.ac.id/ojs/index.php/hebr/article/view/1161. Acesso em: 9 sep. 2025.