Saldana J. Thinking qualitatively: methods of mind. New York: Sage publications; 2014.
Creswell JW. Research design: qualitative, quantitative, and mixed methods approaches. New York: Sage Publications; 2009.
Bazeley P. Issues in mixing qualitative and quantitative approaches to research. Applying Qualitative Methods to Marketing Management Research. 2004:141-156.
This work is licensed under a Creative Commons Attribution 4.0 International License.