Pengaruh rasio keuangan capital adequacy ratio, loan to deposit ratio, non performing loan giro wajib minimum, efisiensi operasional dan ukuran perusahaan terhadap kinerja bank pada bank umum di Indonesia periode 2006-2013 = The impact of financial ratios capital adequacy ratio, loan to deposit ratio, non performing loan, reserve requirement, operational efficiency and company size on banks performance of commercial banks in Indonesia period 2006-2013