Rollis Ayu Ditasari, Ade Ichsan Pradana. Analysis of Optimal Portfolio Comparison on Shares of Sri Kehati by using Single Index Model and Random Model. International Journal of Science, Technology & Management [Internet]. 2021Jul.25 [cited 2024Nov.29];2(4):1273-9. Available from: https://ijstm.inarah.co.id/index.php/ijstm/article/view/270