Sharp, H., Rogers, Y., & Preece, J. (2007). Interaction design: Beyond human-computer interaction (2nd ed.). Chichester: John Wiley & Sons, Ltd.
Παραπομπή Chicago StyleSharp, Helen, Yvonne Rogers, and Jenny Preece. Interaction Design: Beyond Human-computer Interaction. 2nd ed. Chichester: John Wiley & Sons, Ltd, 2007.
Παραπομπή MLASharp, Helen, Yvonne Rogers, and Jenny Preece. Interaction Design: Beyond Human-computer Interaction. 2nd ed. Chichester: John Wiley & Sons, Ltd, 2007.
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