Safitri, Dirsa Amanda, Ahmad Fatoni, and Kurnia Dwi Sari Utami. “Analisis Efisiensi Bank Umum Syariah Di Indonesia Dengan Pendekatan Two Stage Data Envelopment Analysis (DEA)”. Surplus: Jurnal Ekonomi dan Bisnis 5, no. 1 (July 21, 2026): 785–804. Accessed October 24, 2026. https://yptb.org/index.php/sur/article/view/2329.