7Allen N J, Meyer J P. The measurement and antecedents of affective, continuance and normative commitment to the organization. Journal of Occupational Psychology, 1990, 63( 1 ): 1 - 18.
8Deei E L, Ryan R M. Perspectives in motivation. Lincoln: University of Nebraska Press, 1991: 237-288.
9Kanter R M. Commitment and social organization: A study of commitment mechanisms in utopian communities. American Sociological Review, 1968, 33(4): 499- 517.
10Mowday R T, Steers R. M, Porter L M. The measurement of organizational commitment. Journal of Organizational Behavior, 1979, 14 (2): 224-247.