Junaedi, E. “Analisis Pengaruh Biaya Operasional Pendapatan Operasional (BOPO) Dan Non Performing Financing (NPF) Terhadap Profitabilitas Bank Syariah”. Jurnal Asy-Syukriyyah, vol. 17, no. 1, Dec. 2016, pp. 16-31, doi:10.36769/asy.v17i1.60.