Patton, Michael Quinn
Qualitative research and evaluation methods
Sage, 2002
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Rice, Pranee Liamputtong
Qualitative Research Methods
Oxford University Press, 1999
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Patton, Michael Quinn
Qualitative research and evaluation methods
SAGE, 2015
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Patton, Michael Quinn
Qualitative research and evaluation methods
SAGE Publication, 2002
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Lindlof, Thomas R.
Qualitative communication research methods
Sage, 2002
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