HARMAYATI, A. Optimum portfolio formation analysis with Single-index modelson lq 45 shares for the period 2006-2010. Indonesia Auditing Research Journal, [S. l.], v. 11, n. 3, p. 97–106, 2022. DOI: 10.35335/arj.v11i3.67. Disponível em: https://journals.iarn.or.id/index.php/ARJ/article/view/67. Acesso em: 1 may. 2026.