Al-Awadhi, Abdullah M., Ahmad Bash, Ahmad F. Al-Mutairi, and Ahmad M. Al-Awadhi. 2018. “Returns of Islamic Stocks in Saudi Arabia: Segmentation and Risk-Aversion”. International Journal of Economics and Financial Issues 8 (2):238-42. https://mail.econjournals.com/index.php/ijefi/article/view/5974.