Berger, A.N. and Humphrey, D.B. (1997) Efficiency of Financial Institutions: International Survey and Directions for Future Research. European Journal of Operational Research, 98, 175-212.
 Zhao, X. (2000) Empirical Analysis of State-Owned Commercial Bank Efficiency. Economic Science, No. 6, 55-62.
 Zhao, X. and Kang, L. (2001) Demonstrative Study of Factors Affecting Our Banking Efficiency. Policy-Making Reference, No. 4, 62-71.
 Zhang, J.H. (2003) Chinese Commercial Banks Efficiency Research by Method DEA and Empirical Analysis from 1997 to 2001. Journal of Financial Research, No. 3, 24-35.
 Chen, J.X. (2004) An Empirical Study of China’s Banking Market Structure and Market Performance. Financial Forum, No. 5, 55-68.
 Zhu, N., Zhuo, X., et al. (2004) Practical Analysis and Reform Policy on State-Owned Commercial Bank Efficiency. Management World, No. 2, 26-39.
 Zheng, L.J. and Cao, T.Q. (2005) Empirical Analysis of China’s Commercial Banks’ Efficiency and Its Influencing Factors. Journal of Financial Research, No. 1, 32-41.
 Tan, Z.X. (2006) Dynamic Change of Commercial Banks’ Efficiency Based on Improved DEA Method. Statistics and Decision, No. 6, 14-26.
 Yang, D.Q. and Zhang, A.W. (2007) Efficiency of Chinese Commercial Banks from 1995 to 2005—An Empirical Analysis Based on Cost Efficiency and Profit Efficiency. Journal of Financial Research, No. 12, 25-39.
 Tan, Z.X. and Wang, C. (2007) Structure of Chinese Commercial Banks Efficiency Research. Economic Research Journal, No. 7, 34-41.
 Ke, K.L. and Feng, Z.X. (2008) Chinese Commercial Banks Efficiency Measurement and Its Influencing Factors. Application Statistics and Management, No. 1, 62-76.
 Qin, T.A. and Li, X.F. (2009) Reform of Rural Credit Cooperatives Performance Evaluation Based on SBM—Undesirable Mode. Journal of Financial Research, No. 10, 82-95.
 Wang, B. and Zhu, N. (2011) Total Factor Productivity Growth in China’s Banking Sector under the Constraints of Non-Performing Loans. Economic Research Journal, No. 5, 55-68.
 Huang, H.C., Cao, Q. and Li, G.C. (2014) Efficiency of the Reform of Rural Credit Cooperatives under the Constraint of Non-Performing Loans—Based on SBM Directional Distance Function. Journal of Agrotechnical, No. 10, 44-59.
 Ding, J. (2001) An Efficiency Comparison between Regional Commercial Banks in China. Finance Forum, No. 7, 43-51.
 Gan, X.F. (2007) SBM Efficiency of Chinese Commercial Banks—Control Ownership and Macro Factors. Journal of Financial Research, No. 10, 78-90.