Windarti, Inka, NIM. 040419114 (2007) PENGARUH NON PERFORMING LOAN RATIO, CAR, PPAP DAN RASIO BOPO TERHADAP RETURN ON EQUITY BANK-BANK UMUM SWASTA NASIONAL DI INDONESIA PERIODE 2003-2005. Skripsi thesis, UNIVERSITAS AIRLANGGA.