Sugiarni, Wiwik, Hichmaed Tactha Hinggo, and Dwi Dewisri Kinasih. “Analisis Perbandingan Hasil Pembentukan Portofolio Optimal Antara Model Markowitz Dan Model Indeks Tunggal (Studi Kasus Indeks LQ-45 Di Bursa Efek Indonesia)”. ECOUNTBIS: Economics, Accounting and Business Journal 1, no. 1 (September 30, 2021): 182–197. Accessed April 22, 2026. https://jom.umri.ac.id/index.php/ecountbis/article/view/291.