Aunillah, Muhammad Wafa, and Wahyudi Wahyudi. “Analisis Portofolio Optimal CAPM Dan Single Index Model Pada Perusahaan IDX30”. Jurnal Ilmiah Ekonomi Islam, vol. 8, no. 2, July 2022, pp. 2231-40, doi:10.29040/jiei.v8i2.5772.