PENGARUH NON PERFORMING FINANCING (NPF), RETURN ON ASSET (ROA), BIAYA OPERASIONAL PENDAPATAN OPERASIONAL (BOPO), DAN FINANCING TO DEPOSIT RATIO (FDR) TERHADAP CADANGAN KERUGIAN PENURUNAN NILAI (CKPN)(Studi pada Bank Umum Syariah di Indonesia Periode 2017 Total View This Week0