References

1. Kumar, V. and Reinartz, W.J. (2012) Customer Relationship Management – Concept, Strategy & Tools, Springer, Berlin.

2. Kumar, V. (2008) Managing Customers for Profit, Prentice Hall, Upper Saddle River, NJ.

3. Aaker, D.A., Kumar, V., Day, G., and Leone, R.P. (2010) Marketing Research, 10th ed., John Wiley & Sons, Inc., Hoboken, NJ.