1.
Juliana N, Djuanda DG. Analysis of Formation of Optimal Portfolio Single Index Model (Study of Cigarette Sub-Sector Manufacturing Companies Period 2020-2021). WSJEE [Internet]. 2023 Jan. 31 [cited 2024 Nov. 24];1(01):37-41. Available from: https://wsj.westscience-press.com/index.php/wsee/article/view/26