EFISIENSI PERSAINGAN BANK UMUM SYARIAH: PENDEKATAN DATA ENVELOPMENT ANALYSIS (DEA) DAN BOSTON CONSULTING GROUP (BCG). Signifikan: Jurnal Ilmu Ekonomi, [S. l.], v. 3, n. 1, 2014. DOI: 10.15408/sigf.v3i1.2059. Disponível em: https://journal.uinjkt.ac.id/signifikan/article/view/2059. Acesso em: 22 dec. 2025.