Lazarinis, Fotis, and Dimitris Kanellopoulos. “Fostering Student Engagement in a Mobile Formative Assessment System for High-School Economics”. Social Education Research 2, no. 2 (March 22, 2021): 111-120. Accessed June 14, 2021. https://ojs.wiserpub.com/index.php/SER/article/view/747.