INDRIANI MENTARUK; ANDI NURUL AZIZAH; UMMU KALSUM. Analisis Pembentukan Portofolio Optimal Pada Saham Perusahaan Rumah Sakit di Indonesia. Jurnal Dunia Pendidikan, [S. l.], v. 6, n. 4, p. 1947–1963, 2025. DOI: 10.55081/jurdip.v6i4.5301. Disponível em: https://www.stokbinaguna.ac.id/jurnal/index.php/JURDIP/article/view/5301. Acesso em: 21 sep. 2026.