Denscombe, M. (2009). Item non-response rates: A comparison of online and paper questionnaires. International journal of social research methodology, 12(4), 281-291. https://doi.org/10.1080/13645570802054706
Citácia podle Chicago (17th ed.)Denscombe, Martyn. "Item Non-response Rates: A Comparison of Online and Paper Questionnaires." International Journal of Social Research Methodology 12, no. 4 (2009): 281-291. https://doi.org/10.1080/13645570802054706.
Citácia podľa MLA (8th ed.)Denscombe, Martyn. "Item Non-response Rates: A Comparison of Online and Paper Questionnaires." International Journal of Social Research Methodology, vol. 12, no. 4, 2009, pp. 281-291, https://doi.org/10.1080/13645570802054706.
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