Lestari, Adika Risky, and Devni Prima Sari. “Optimal Portfolio Risk Estimation Using Expected Shortfall of Jakarta Islamic Index (JII) Shares”. Mathematical Journal of Modelling and Forecasting 2, no. 1 (July 6, 2024): 32–39. Accessed November 21, 2024. https://mjomaf.ppj.unp.ac.id/index.php/mjmf/article/view/19.