Aditya Rian Ramadhan, Perli Iswanto, Didin Hikmah Perkasa. ANALISIS PORTOFOLIO OPTIMAL SAHAM INDEKS INFOBANK 15 DENGAN MODEL MARKOWITZ UNTUK PENGAMBILAN KEPUTUSAN INVESTASI PASCA PANDEMI COVID-19. JAMAN [Internet]. 2023 Dec. 1 [cited 2025 Mar. 12];3(3):53-60. Available from: https://journal.admi.or.id/index.php/JAMAN/article/view/1093