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"Number of people required for usability evaluation: the 10+/-2 rule."
Wonil Hwang, Gavriel Salvendy (2010)
- Wonil Hwang, Gavriel Salvendy:

Number of people required for usability evaluation: the 10+/-2 rule. Commun. ACM 53(5): 130-133 (2010)

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