Lindlof, Thomas R.
Qualitative communication research methods
Sage, 2002
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Gummesson, Evert
Qualitative methods in management research
Sage, 2000
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Patton, Michael Quinn
Qualitative research and evaluation methods
Sage, 2002
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Patton, Michael Quinn
Qualitative evaluation and research methods
Sage, 1990
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Lindlof, Thomas R.
Qualitative communication research methods
Sage, 1995
Buku Teks SO