Saidurrahman, Saidurrahman. “Perjanjian Syariah Pada Lembaga Keuangan Syariah”. ISLAMICA: Jurnal Studi Keislaman 6, no. 2 (March 1, 2012): 344-360. Accessed May 29, 2020. http://islamica.uinsby.ac.id/index.php/islamica/article/view/151.