Cite
HARVARD Citation
Guest, G. et al. (n.d.). How Many Focus Groups Are Enough? Building an Evidence Base for Nonprobability Sample Sizes. Field methods. 29 (1), pp. 3-22. [Online].
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Guest, G. et al. (n.d.). How Many Focus Groups Are Enough? Building an Evidence Base for Nonprobability Sample Sizes. Field methods. 29 (1), pp. 3-22. [Online].