Sukardi H, Sari M, Nugraha N, Purnamasari I. Markowitz Portfolio Optimization Applied On Companies Listed On The Indonesia Stock Exchange LQ-45. Ekono Insentif [Internet]. 30Apr2023 [dikutip 3Jul2024];17(1):34-8. Available from: https://jurnal.lldikti4.or.id/index.php/jurnalekono/article/view/1109