Anggraini, Dini, Titing Suharti, and Immas Nurhayati. “ANALISIS METODE INDEKS TUNGGAL DALAM PEMBENTUKAN PORTOFOLIO OPTIMAL”. Manager : Jurnal Ilmu Manajemen 2, no. 4 (December 11, 2020): 494–503. Accessed May 5, 2024. https://ejournal.uika-bogor.ac.id/index.php/Manager/article/view/3796.