Mura , Roberta. “Étude Comparative De l’utilisation spontanée d’une Calculatrice”. Canadian Journal of Education Revue Canadienne De l’éducation, vol. 9, no. 4, Jan. 1984, pp. 411-24, https://cje.journals.publicknowledgeproject.org/cje/index.php/cje-rce/article/view/8197.