1. Zhang Fan, Luo Qi, Gong Xiaodong. Practical (Web) Interface Design Tutorials. Beijing: People's Posts and Telecommunications Press; 2002.
2. (U.S.) Alan Cooper, Robert M. Reimann. About Face 2.0:The Essentials of Interaction Design. Beijing: Electronic Industry Press; 2005, p. 248.
3. Yang Xingxing. Design Psychology. Changsha: National University of Defense and Technology Press, 2005; p. 27.
4. Digital Graphical Interface Design;Lu Xiaobo,2006