1. Abbott, D.: Find correlated variables prior to modeling. In: Data Mining and Predictive Analytics. http://abbottanalytics.blogspot.com.tr/2004/12/find-correlated-variables-prior-to.html (2004). Accessed 12 Oct 2016
2. Arrindell, W.A., Van der Ende, J.: An empirical test of the utility of the observations-to-variables ratio in factor and components analysis. Appl. Psychol. Meas. 9, 165–178 (1985)
3. Batanero, C., Biehler, R., Maxara, C., Engel, J., and Vogel, M.: Using simulation to bridge teachers’ content and pedagogical knowledge in probability. In: Proceedings of the 15th ICMI Study Conference: The Professional Education and Development of Teachers of Mathematics, 1–6 Jan 2005, Águas de Lindóia, Brazil
4. Borovcnik, M.G., Kapadia, R.: Research and developments in probability education internationally. In: Proceedings of the British Congress for Mathematics Education, pp. 41–48 (2010)
5. Burrill, G.: Simulation as a tool to develop statistical understanding. Paper presented at the Sixth International Conference on Teaching Statistics. Cape Town, South Africa (2002)