Rahman, T., and K. Fatmawati. “The Influence of Financial Ratios on Non Performing Financing of the Sharia Rural Banks of Special Region of Yogyakarta (BPRS DIY) Period 2015 – 2018”. Asian Journal of Islamic Management (AJIM), vol. 2, no. 1, Sept. 2020, pp. 25-35, doi:10.20885/ajim.vol2.iss1.art3.