Whiting, M., & Sines, D. (2012). Mind maps: establishing 'trustworthiness' in qualitative research. Nurse Researcher, 20(1), 21-27. Retrieved from https://lynn-lang.student.lynn.edu/login?url=http://search.ebscohost.com/login.aspx?direct=true&db=aph&AN=80441007&site=ehost-live
Brewer, J. (2003). Qualitative Research. In R. Miller & J. Brewer, The A-Z of social research. London, United Kingdom: Sage UK. Retrieved from https://lynn-lang.student.lynn.edu/login?url=http://search.credoreference.com/content/entry/sageuksr/qualitative_research/0
Refining survey design. (2008). In A. Lewis, The Cambridge Handbook of psychology and economic behavior. Cambridge, United Kingdom: Cambridge University Press. Retrieved from https://lynn-lang.student.lynn.edu/login?url=http://search.credoreference.com/content/entry/cuppeb/18_3_refining_survey_design/0