RAJYAGURU, J. U. Analysis of Portfolio Return and Risk: A multination approach. RESEARCH REVIEW International Journal of Multidisciplinary, [S. l.], v. 8, n. 12, p. 137–143, 2023. DOI: 10.31305/rrijm.2023.v08.n12.020. Disponível em: https://www.old1.rrjournals.com/index.php/rrijm/article/view/996. Acesso em: 28 apr. 2026.