SEBEHELA, Tumellano. ROA on Gold Mines in ZA. Indian Journal of Finance, [S. l.], v. 6, n. 3, p. 22–30, 2012. Disponível em: https://indianjournalofentrepreneurship.com/index.php/IJF/article/view/72429. Acesso em: 5 oct. 2025.