Mubarok, Ferry Khusnul, Ahmad Ridho Darmawan, and Zahirotul Luailiyah. 2017. “Optimalisasi Portofolio Nilai Saham: Studi Komparasi Kinerja Saham Syariah Dan Nonsyariah”. Economica: Jurnal Ekonomi Islam 8 (2):309-36. https://doi.org/10.21580/economica.2017.8.2.2368.