Palacios, Ricardo Colomo, Juan Miguel Gómez Berbís, and Ángel García Crespo. “An Integrated Methodology for Customer Relationship Management Customization”. Journal of Information Systems and Technology Management 4, no. 3 (February 3, 2008): 287–300. Accessed October 16, 2025. https://jistem.tecsi.org/index.php/jistem/article/view/10.4301%252FS1807-17752007000300002.