1. Babbie, E. (2011).The basics of social research(5th ed.). Belmont, CA: Wadsworth.
2. Bannister, R. C. (1991).Sociology and scientism:The American quest for objectivity, 1880–1940. Chapel Hill, NC: The University of North Carolina Press.
3. Charmaz, K. (2006).Constructing grounded theory: A practical guide through qualitative analysis. Thousand Oaks, CA: Sage.
4. Denzin, N. K. (1989).Interpretive biography. Newbury Park, CA: Sage.
5. Douglas, J. D. (1984).Creative interviewing. Thousand Oaks, CA: Sage.