Adam, M., Safitri, R., & Wahyudi, T. (2018). Effect of company size, liquidity and operational efficiency on bank profitability with problem credit risk as a moderating variable at commercial banks that are listed on the Indonesia Stock Exchange. Jurnal Perspektif Pembiayaan Dan Pembangunan Daerah, 6(3), 331 - 344. https://doi.org/10.22437/ppd.v6i3.5894