1. Slater R. A. C.. Engineering plasticity. (Thomson Press, 1977)
2. Delphi Corporation. Automotive Engineering, (2005)
3. Xue Si. Elastic-plastic mechanics. (China buliding material press, 2005)
4. Guo Y., Tao W., Zhuang Z.. Linear and nonlinear finite element. (Mechanical Industry Press: Beijing, 2005)