MELIYANA, Sitti Masyitah. Strategi Diversifikasi Saham Perbankan Melalui Model Markowitz untuk Portofolio Optimal. GAUSS: Journal of Mathematics, Statistics, and Mathematics Education, [S. l.], v. 1, n. 1, p. 20–31, 2025. Disponível em: https://journal.ininnawaparaedu.com/jmsme/article/view/297. Acesso em: 11 jan. 2026.