ILMA, Shofana Fatkhatul; HIDAYATI, Amalia Nuril. Analisis Pembentukan Portofolio Saham Optimal Pada Perusahaan Yang Terdaftar Di Jakarta Islamic Index (JII) Periode 2018 – 2021. Journal of Economics and Management, [S. l.], v. 2, n. 1, p. 29–44, 2024. DOI: 10.55681/ecoma.v2i1.37. Disponível em: https://ejournal.publine.or.id/index.php/ecoma/article/view/37. Acesso em: 12 oct. 2025.