LO, Van Pang. Online Teaching and Learning Challenges in a Mountainous and Remote Area of Vietnam. Proceedings of the AsiaCALL International Conference, [S. l.], v. 533, n. 978-94-6239-343-1, p. 121–127, 2021. DOI: 10.2991/assehr.k.210226.015. Disponível em: https://asiacall.info/proceedings/index.php/articles/article/view/17. Acesso em: 3 may. 2024.