1. Ajzen, I., & Fishbein, M. (2005). The influence of attitudes on behaviour. The Handbook of Attitudes, 173(221), 31.
2. Alsabti, K., Ranka, S., & Singh, V. (1997). An efficient k-means clustering algorithm. Electrical Engineering and Computer Science, 43.
3. Alva. (2011). The Alva methodology for corporate reputation analysis. London: Alva.
4. Small details that make big differences
5. Caldeira, C. (2012). Data Warehousing, Conceitos e Modelos (2ed.). Edições Sílabo: Lisboa.