SIRAIT, H.; HANIFAH, W. N. .; ANGGRAENI, D. .; CHRISTANTI, S. A. . Analysis of Optimal Stock Portfolio Formation Using the Single Index Model as the Basis for Investment Decisions. Eduvest - Journal of Universal Studies, [S. l.], v. 4, n. 12, p. 11560–11578, 2024. DOI: 10.59188/eduvest.v4i12.1805. Disponível em: https://eduvest.greenvest.co.id/index.php/edv/article/view/1805. Acesso em: 30 jun. 2025.