Jati, W. (2021) “Influence of Operational Costs on Operating Revenue and Loan to Deposit Ratio against Return on Asset at PT. Bank Negara Indonesia, Tbk Year 2009-2019”, Kontigensi : Jurnal Ilmiah Manajemen, 9(1), pp. 1-9. doi: 10.56457/jimk.v9i1.88.