Lofland, John
Analyzing social settings: a guide to qualitative observation and analysis
Wadsworth, 1971
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Strauss, Anselm L.
Qualitative analysis for social scientists
Cambrigde University Press, 1987
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Analyzing qualitative data
edited by Alan Bryman, Robert G. Burgess
Routledge , 1995
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Andrews, Frank M.
A guide for selecting statistical techniques for analyzing social science data
University of Michigan, 1981
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Shaw, Ian
Qualitative research in social work
Sage, 2001
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