Fiedler, Judith
Field research : a manual for logistics and management of scientific studies in natural settings / Judith Fiedler.
Jossey-Bass Publishers, 1978.
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Robson, Colin
Real world research: a resources for social scientists and practitioner-researchers
Oxford, 2002
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Blalock, Hubert M.
An introduction to social research
Prentice-Hall, 1970
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Blalock, Hubert M.
An introduction to social research
Prentice-Hall, 1982
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Lofland, John
Analyzing social settings: a guide to qualitative observation and analysis
Wadsworth, 1971
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