FADHILAH, A. A.; FACHRUR, M. M.; AYUNINGRUM, A. P. ANALISIS PORTOFOLIO OPTIMAL MODEL MARKOWITZ DAN SINGLE INDEX MODEL: PADA PERUSAHAAN YANG TERDAFTAR INDEKS ESG-LEADER DI BURSA EFEK INDONESIA TAHUN 2020 – 2022. Journal of Accounting and Management’s Student, [S. l.], v. 1, n. 1, 2024. Disponível em: https://journals.unikal.ac.id/index.php/jams/article/view/86. Acesso em: 7 oct. 2026.