VALLURI, Subhakara. Examination of the commodity products available in the global financial markets using their market concentration levels. Research Papers in Economics and Finance, [S. l.], v. 4, n. 2, p. 53–63, 2020. DOI: 10.18559/ref.2020.2.5. Disponível em: https://journals.ue.poznan.pl/REF/article/view/86. Acesso em: 5 nov. 2024.