ASIH, I. W. Social Presence among Distance Learners: Portrait of Online Communication at Universitas Terbuka*. International Journal on Open and Distance e-Learning, [S. l.], v. 3, n. 1, 2017. Disponível em: https://ijodel.upou.edu.ph/index.php/ijodel/article/view/26. Acesso em: 21 nov. 2024.