Cassell, Catherine, and Gillian Symon. Essential Guide to Qualitative Methods in Organizational Research. London: SAGE, 2004. Print.
Denzin, Norman K., and Yvonna S. Lincoln. The SAGE Handbook of Qualitative Research. 4th ed. Thousand Oaks, California: SAGE, 2011. Print.
Silverman, David. A Very Short, Fairly Interesting and Reasonably Cheap Book about Qualitative Research. 2nd ed. London: Sage, 2013. Print.
Silverman, David. Doing Qualitative Research: A Practical Handbook. 3rd ed. London: SAGE, 2010. Print.
Symon, Gillian, and Catherine Cassell. Qualitative Organizational Research: Core Methods and Current Challenges. London: Sage, 2012. Print.
Thorpe, Richard, Robin Holt, and MyiLibrary. The Sage Dictionary of Qualitative Management Research. London: SAGE, 2008. Web. <https://ebookcentral.proquest.com/lib/nottingham/detail.action?docID=433627>.