1. Chan, K. B., & Chiang, C. (1994). Stepping out: The making of Chinese entrepreneurs. Singapore: Prentice Hall.
2. Etzioni, A. (1988). The moral dimension: Toward a new economics. New York: The Free Press.
3. Levinger, G. (1982). A social exchange view on the dissolution of pair relationships. In F. I. Nye (Ed.), Family relationships (pp. 97–122). Beverly Hills: Sage Publications.
4. Sontag, S. (2003). Regarding the pain of others. New York: Farrar, Straus and Giroux.
5. Xu, L. (Ed.). (2005). A study of the development of charity undertakings in China. Beijing: Chinese Social Sciences Publishing House (In Chinese).