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Virzi, 1992
Virzi, R. A. (1992). Refining the test phase of usability evaluation: How many subjects is enough? Human Factors, 34, 4, 457-468.
Human-Computer Interaction Resource Network
Home > References > V > Virzi, 1992
Virzi, R. A. (1992). Refining the test phase of usability evaluation: How many subjects is enough? Human Factors, 34, 4, 457-468.
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