1. Blau, Peter Michael (1964),Exchange and Power in Social Life, New York: John Wiley & Sons.
2. Bowlby, John (1973),Separation: Anxiety and Anger, New York: Basic Books.
3. Bruhn, John G. (2001),Trust and the Health of Organizations, New York: Kluwer Academic/Plenum.
4. Diamantopoulos, Adamantios, and Judy A. Siguaw (2000),Introducing LISREL, London: Sage.
5. Hair, Joseph F. , Jr., Rolph Anderson, Ronald L. Tatham, and William C. Black (1998),Multivariate Data Analysis, 4th ed., Upper Saddle River, NJ: Prentice Hall.