K. A. Mukti and D. Supiyadi, “Pengaruh Net Interest Margin (NIM), Biaya Operasional Pendapatan Operasional (BOPO) dan Financing to Deposit Ratio (FDR), terhadap Return on Assets (ROA) Studi pada PT Bank Muamalat Indonesia Periode 2016- 2024”, RIGGS, vol. 5, no. 1, pp. 1168–1179, Feb. 2026.