Adeli Nik, H. (2013). The Impact of Macroeconomic Variables fluctuations on Non-Performing Loans. Monetary and Banking Research Institute, working paper No: MBRI 9226(In Persian).
                                                                                                                Arellano, M., & Bond, S. (1991). Some Tests of Specification for panel data: Monte Carlo evidence and an application to employment equations. The review of economic studies, 58(2), 277-297.
                                                                                                                Baltagi,B.,P.; Demetriades, S. H. & Law (2009). Financial Development and Openness: Evidence from Panel Data, Journal of Development Economics, (89): 285-296.
                                                                                                                Breuer, J. B. (2006). Problem bank loans, conflicts of interest, and institutions. Journal of Financial Stability, 2(3), 266-285.
                                                                                                                Fofack, H. (2005). Nonperforming loans in Sub-Saharan Africa: causal analysis and macroeconomic implications. World Bank Policy Research Working Paper (3769).
                                                                                                                Delangizan, S.; Amiryani, P. & Khalvandi, Z. (2013). Investigate the relationship between national production and unemployment in Iran's provinces: Dynamic panel approach. The first electronic conference in Iranian economics landscape (In Persian).
                                                                                                                Dimitrios, A.; Helen, L., & Mike, T. (2016). Determinants of non-performing loans: Evidence from Euro-area countries. Finance research letters, 18, 116-119.
                                                                                                                Isik, O. & Bolat, S. (2016). Determinants of non-performing loans of deposit banks in Turkey. Journal of Business Economics and Finance, 5(4), 341-350.
                                                                                                                Khatei, M.; Mohammadi, T. & Mirzaei, S. (2016). The determinants of the portfolio of loans in the banking system of Iran: dynamic panel aproach. Journal of Iranian Applicable Economic Studies, (71) 81-108 (In Persian).
                                                                                                                Kjosevski, J. & Petkovski, M. (2017). Non-performing loans in Baltic States: determinants and macroeconomic effects. Baltic Journal of Economics, 17(1), 25-44.
                                                                                                                Mirzaei, H. & Falihi, N. (2011). Impact of uncertainty of macroeconomic variables (exchange rate and inflation) on credit risk of legal bank customers in Tejarat Bank. Journal of Economics, 6(18) (In Persian).
                                                                                                                Mohammadi, T.; Skandari, F. & Karimi, D. (2015). Impact of Macroeconomic and bank specified variables on Non-performing Loans in Iran. Research Journal of Economics, (62),81-101(In Persian).
                                                                                                                Pormatin, A. & Jamshidi, s. (2015). Non-Performing Loans- Challenges and solutions. 1st Edition, Gap Publication, Tehran. 
                                                                                                                Seyed Shokri, K. and Garosi, S. (2015). Investigating the Factors Affecting Increasing Non-Claims in the Banking System of the Country. Journal of Economics, 9(31) (In Persian).