Kassim, Nawal Seif, Roslily Ramlee, and Salina Kassim. 2017. “Impact of Inclusion into and Exclusion from the Shariah Index on a Stock Price and Trading Volume: An Event Study Approach”. International Journal of Economics and Financial Issues 7 (2):40-51. https://econjournals.com.tr/index.php/ijefi/article/view/3297.