Damayanti, Muthia, Titing Suharti, and Diah Yudhawati. “PENILAIAN KINERJA PORTOFOLIO SAHAM SYARIAH DENGAN METODE SHARPE INDEX”. Manager : Jurnal Ilmu Manajemen 4, no. 1 (February 24, 2021): 102–110. Accessed February 22, 2025. http://360665.5mvk4.group/index.php/Manager/article/view/4353.