1. Babbie, E. (1990). Survey research methods. Wadsworth.
2. Bailey, K. D. (1987). Methods of social research (3rd ed.). Collier Macmillan.
3. Braun, V., & Clarke, V. (2006). Using thematic analysis in psychology. Qualitative Research in Psychology, 3, 77–101.
4. Creswell, J. W. (1998). Qualitative inquiry and research design: Choosing among five traditions. Sage.
5. Curran, J. (2002). Media and power. Routledge.