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, [S. l.], v. 2, n. 4, p. 1273–1279, 2021. DOI: 10.46729/ijstm.v2i4.270. Disponível em: https://www.ijstm.inarah.co.id/index.php/ijstm/article/view/270. Acesso em: 24 dec. 2025.