Mohammad Nur Rianto Al Arif, and Bella Firmansyah. “Market Structure and Profitability: Evidence in the Indonesian Islamic Insurance Industry”. International Journal of Business and Society 22, no. 2 (August 12, 2021): 1004-1014. Accessed March 28, 2024. https://publisher.unimas.my/ojs/index.php/IJBS/article/view/3778.