Lofland, John
Analyzing social settings: a guide to qualitative observation and analysis
Wadsworth, 1984
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Lofland, John
Analyzing social settings: a guide to qualitative observation and analysis
Wadsworth, 1971
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Bailey, Kenneth D.
Methods of social research
The free press, 1994
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Robson, Colin
Real world research: a resources for social scientists and practitioner-researchers
Oxford, 2002
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An introduction to social research / Edited by John T. Doby
Irvington Publ., 1967
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