Applying data mining on customer relationship management system to discover forgotten effects. - Urrutia, Angélica; Rojo, Fabiola; Nicolas, Dra. Carolina; Ahumada, Roberto; Leon-Castro, Ernesto; Blanco-Mesa, Fabio; Alfaro-Garcia, Victor; Gil-Lafuente, Anna M.; Merigo, Jose M. (Journal of Intelligent & Fuzzy Systems, 2021)