Alfaro Arce, A., Alpízar Vargas, M. and Chaves Esquivel, E. (2012) “Methodological resources used by teachers in cycles I and II in basic general education in the region of Heredia, when they teach probability and statistics”, Uniciencia, 26(1-2), pp. 135-151. Available at: https://www.revistas.una.ac.cr/index.php/uniciencia/article/view/3869 (Accessed: 2July2020).