Ferraris, Luigi. “Il Foglio Elettronico in Quanto Strumento Cognitivo; Come Avvalersene?”. Journal of e-Learning and Knowledge Society 3, no. 1 (October 14, 2012). Accessed September 30, 2023. http://je-lks.org/ojs/index.php/Je-LKS_EN/article/view/745.