KURNIAWAN, W. ANALISIS PEMBENTUKAN PORTOFOLIO OPTIMAL SAHAM-SAHAM DI JAKARTA ISLAMIC INDEX (JII) DENGAN MENGGUNAKAN MODEL INDEKS TUNGGAL. JURNAL ECONOMINA, [S. l.], v. 2, n. 6, p. 1143–1164, 2023. DOI: 10.55681/economina.v2i6.550. Disponível em: https://ejournal.45mataram.or.id/index.php/economina/article/view/550. Acesso em: 7 oct. 2024.