PUTRI, PUTRI; DEVIANTO, DODI; ASDI, YUDIANTRI. MODEL PORTOFOLIO OPTIMAL MARKOWITZ PADA SAHAM INDEKS LQ45 PERIODE JANUARI 2015 – JANUARI 2019. Jurnal Matematika UNAND, [S. l.], v. 9, n. 2, p. 93–98, 2020. DOI: 10.25077/jmu.9.2.93-98.2020. Disponível em: https://jmua.fmipa.unand.ac.id/index.php/jmua/article/view/576. Acesso em: 29 oct. 2026.