RESTU SUGESTI; FITRIASURI, Fitriasuri. Pengaruh Kinerja Portofolio Saham pada Indeks Sektoral Menggunakan Single Indeks Model . JUMINTAL: Jurnal Manajemen Informatika dan Bisnis Digital, [S. l.], v. 3, n. 2, p. 131–148, 2024. DOI: 10.55123/jumintal.v3i2.4799. Disponível em: https://www.journal.literasisains.id/index.php/jumintal/article/view/4799. Acesso em: 14 may. 2026.