1. Patterns of attachement: A psychological study of the strange situation;Ainsworth M. D. S.;Erlbaum,1978
2. Bowlby, J. (1969). Attachment and loss, vol. 1: Attachment. Basic Books.
3. Davis, F. (2017). Professional socialization as subjective experience: The process of doctrinal conservation among student nurses. In H. Becker (Ed.), Institutions and the person (pp. 231–251). Routledge.
4. Etzioni, A. (1975). A comparative analysis of complex organizations. The Free Press.
5. Freud, S. (1930). Civilisation and its discontents (Vol. 21, Standard ed.). Hogarth Press, 1961.