NORZ, Lisa-Maria; KACZKÓ, Éva; NETZER, Michael; AMMENWERTH, Elske. Quantifying social presence in online-based learning: a statistical and didactical analysis of indicators from social network analysis . Online Learning, Boston, MA, v. 28, n. 4, 2024. DOI: 10.24059/olj.v28i4.4134. Disponível em: https://olj.onlinelearningconsortium.org/index.php/olj/article/view/4134. Acesso em: 2 apr. 2026.