1. Atkinson, P., & Hammersley, M. (1994). Ethnography and participant observation. Handbook of Qualitative Research, 1(23), 248–261.
2. Boyce, C., & Neale, P. (2006). Conducting in-depth interviews: A guide for designing and conducting in-depth interviews for evaluation input. Watertown, MA: Pathfinder International.
3. Bryman, A. (2012). Social research methods. New York, NY: Oxford University Press.
4. Catterall, M., & Ibbotson, P. (2000). Using projective techniques in education research. British Educational Research Journal, 26(2), 245–256.
5. Check, J., & Schutt, R. K. (2011). Research methods in education. Thousand Oaks, CA: Sage Publications.