SAFITRI, D. A.; FATONI, A.; UTAMI, K. D. S. Analisis Efisiensi Bank Umum Syariah di Indonesia dengan Pendekatan Two Stage Data Envelopment Analysis (DEA). Surplus: Jurnal Ekonomi dan Bisnis, [S. l.], v. 5, n. 1, p. 785–804, 2026. DOI: 10.71456/sur.v5i1.2329. Disponível em: https://yptb.org/index.php/sur/article/view/2329. Acesso em: 24 oct. 2026.