MARTIN, Florence; BOLLIGER, Doris U. Engagement Matters: Student Perceptions on the Importance of Engagement Strategies in the Online Learning Environment. Online Learning, Boston, MA, v. 22, n. 1, 2018. DOI: 10.24059/olj.v22i1.1092. Disponível em: https://olj.onlinelearningconsortium.org/index.php/olj/article/view/1092. Acesso em: 6 apr. 2026.