The Effect of Capital Adequacy and Operational Efficiency on Financial Performance (Case Study of Bank Syariah Indonesia and Bank Muamalat for the Period 2019-2024): The Effect of Capital Adequacy and Operational Efficiency on Financial Performance. JKUBS [Internet]. 2025 Dec. 31 [cited 2026 Jun. 13];4(2). Available from: https://e-journal.iainptk.ac.id/index.php/jkubs/article/view/4572