PARAMITASARI, R. Portfolio Analysis to Determine the Optimal Expected Return and Minimal Risk for Lq45 Companies Listed on the Indonesian Stock Exchange. Eduvest - Journal of Universal Studies, [S. l.], v. 6, n. 8, p. 9614–9652, 2026. DOI: 10.59188/eduvest.v6i8.53474. Disponível em: https://eduvest.greenvest.co.id/index.php/edv/article/view/53474. Acesso em: 31 aug. 2026.