1. S. Yoo, and D. M. Hansenss, “Modeling the marketing mix's sales and customer equity effect,” University of California, 2005.
2. Modeling Customer Lifetime Value
3. Customers as assets
4. V. Kumar, “Uses, misuses, and future advance in R,” in The Handbook of Market Research, edited by R. Grover and M. Vriens (Sage Publication, California, 2005), pp. 602–628.
5. Discovering recency, frequency, and monetary (RFM) sequential patterns from customers’ purchasing data