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Silverman, David. Doing qualitative research: a practical handbook. 3rd ed. London: SAGE; 2010.
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Thorpe R, Holt R, MyiLibrary. The Sage dictionary of qualitative management research [Internet]. London: SAGE; 2008. Available from: https://ebookcentral.proquest.com/lib/nottingham/detail.action?docID=433627
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Symon G, Cassell C. Qualitative organizational research: core methods and current challenges. London: Sage; 2012.
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Cassell C, Symon G. Essential guide to qualitative methods in organizational research. London: SAGE; 2004.
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Denzin NK, Lincoln YS. The SAGE handbook of qualitative research. 4th ed. Thousand Oaks, California: SAGE; 2011.
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Silverman D. A very short, fairly interesting and reasonably cheap book about qualitative research. 2nd ed. London: Sage; 2013.