Reference keyword: Social sciences Research Methodology

Creswell, J. W. (2003). Research design: Qualitative, quantitative, and mixed methods approaches (2nd ed.). Thousand Oaks, Calif.: Sage Publications.

Warren, C. A. B., & Karner, T. X. (2005). Discovering qualitative methods: Field research, interviews, and analysis. Los Angeles, Calif.: Roxbury Publishing Company.

Neuman, W. L. (2007). Basics of social research : qualitative and quantitative approaches (2nd ed.). Boston: Pearson/Allyn and Bacon.