KHOBAI, H.; ABEL, S.; LE ROUX, P. Co-integration between Electricity Supply and Economic Growth in South Africa. International Journal of Energy Economics and Policy, [S. l.], v. 6, n. 3, p. 637–645, 2016. Disponível em: https://www.econjournals.com/index.php/ijeep/article/view/2808. Acesso em: 4 may. 2024.