Perbandingan Pembentukan Portofolio Optimal Model Indeks Tunggal Menggunakan Return Aset Bebas Risiko Sukuk dan Sertifikat Bank Indonesia Syariah (SBIS). Kaunia: Integration and Interconnection Islam and Science Journal, [S. l.], v. 18, n. 2, p. 73–81, 2023. DOI: 10.14421/kaunia.3779. Disponível em: https://ejournal.uin-suka.ac.id/saintek/kaunia/article/view/3779. Acesso em: 1 feb. 2026.