Survey research
Sapsford, Roger
Survey research - 2nd ed. - London: SAGE, 2011 - xiii, 276p.
9781412912327
Research Methodology
Design Research
700.42 / SAP
Survey research - 2nd ed. - London: SAGE, 2011 - xiii, 276p.
9781412912327
Research Methodology
Design Research
700.42 / SAP