Agus, Mirian, Maria Pietronilla Penna, Maribel Peró-Cebollero, Joan Guàrdia-Olmos, and Eliano Pessa. 2014. “The Application of Graphical Representations in Estimation of Probabilistic Events”. Ricerche Di Pedagogia E Didattica. Journal of Theories and Research in Education 9 (1):235-52. https://doi.org/10.6092/issn.1970-2221/4299.