Endang Kurniati. “Skala Ekonomi, Produktivitas Dan Bank Syari’ah Indonesia”. Iqtishodiyah : Jurnal Ekonomi dan Bisnis Islam 2, no. 1 (January 19, 2016): 31–49. Accessed August 6, 2025. https://ejournal.unzah.ac.id/index.php/iqtishodiyah/article/view/207.