Couper, M. (2008). Designing effective Web surveys. Cambridge University Press.
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Dyfyniad Arddull Chicago
Couper, Mick. Designing Effective Web Surveys. Cambridge ; New York: Cambridge University Press, 2008.
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Dyfyniad MLA
Couper, Mick. Designing Effective Web Surveys. Cambridge University Press, 2008.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.