ANDRIANI, E.; PRISKANANDA, A. A.; BUDIRAHARJO, M. A Cultural-Historical Activity Theory (CHAT) Analysis on Educational Psychology Class: The Challenges in Delivering a Fully Online Classroom Environment. Journal of Foreign Language Teaching and Learning, [S. l.], v. 7, n. 1, p. 41–60, 2022. DOI: 10.18196/ftl.v7i1.13196. Disponível em: https://journal.umy.ac.id/index.php/FTL/article/view/13196. Acesso em: 16 may. 2025.