Kamaruddin, Kamaruddin, Zuhrinal M Nawawi, and Andri Soemitra. “FACTORS AFFECTING THE FINANCIAL PERFORMANCE OF ISLAMIC INSURANCE COMPANIES IN INDONESIA USING SURPLUS ON CONTRIBUTION (SOC)”. Eqien - Jurnal Ekonomi dan Bisnis 9, no. 1 (January 31, 2022): 157–165. Accessed August 2, 2025. http://stiemuttaqien.ac.id/ojs/index.php/OJS/article/view/322.