LIU, Chenxi; CORREIA, Ana-Paula. A Case Study of Learners’ Engagement in Mobile Learning Applications. Online Learning, Boston, MA, v. 25, n. 4, 2021. DOI: 10.24059/olj.v25i4.2827. Disponível em: https://olj.onlinelearningconsortium.org/index.php/olj/article/view/2827. Acesso em: 2 apr. 2026.