VILLANUEVA, Juliet Aleta Rivera; REDMOND, Petrea; GALLIGAN, Linda. Manifestations of Cognitive Presence in Blended Learning Classes of the Philippine K-12 System. Online Learning, Boston, MA, v. 26, n. 1, 2022. DOI: 10.24059/olj.v26i1.3021. Disponível em: https://olj.onlinelearningconsortium.org/index.php/olj/article/view/3021. Acesso em: 25 mar. 2026.