1. Goh T. N., Quality Engineering Applications of Statistical Design of Experiments (John Wiley & Sons, Asia Pte Ltd, 2005)
2. Box G. E. P., Hunter G. S., Hunter W. G., Statistics for Experimenters: Design, Innovation, and Discovery (John Wiley & Sons, Inc, New Jersey, 2005)
3. Schifferstein H. N. J., Hekkert P., Product Experience (Elsevier Ltd, Oxford, UK, 2008)
4. Customer Emotional Needs in Product Design