Agouram, J., J. Anoualigh, L. B. Hssain, and G. Lakhnati. “Performance and Risks: Islamic Indices Compared to Conventional Indices”. Asian Journal of Economics and Empirical Research, vol. 8, no. 1, Apr. 2021, pp. 17-26, doi:10.20448/journal.501.2021.81.17.26.