“Types of the Contract of Istasna Prevalent in Islamic Banks and Their Shariah Ruling: Types of the Contract of Istasna Prevalent in Islamic Banks and Their Shariah Ruling”. International Research Journal on Islamic Studies (IRJIS) 4, no. 1 (June 10, 2022): 212–219. Accessed December 22, 2024. https://islamicjournals.com/ojs/index.php/IRJIS/article/view/199.