Research methods: guidance for postgraduates
edited by Tony Greenfield
Arnold, 1996
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Fowler, Floyd J., author
Survey research methods
Sage, 2002
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Pratt, Brian, author
Choosing research methods: data collection for development workers
Oxfam, 1992
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Goode, William J., author
Methods in social research
McGraw-Hill, 1952
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Gillham, Bill, author
Case study research methods
Continuum , 2000
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