KUYATH, Stephen J.; WINTER, Susan J. DISTANCE EDUCATION COMMUNICATIONS: THE SOCIAL PRESENCE AND MEDIA RICHNESS OF INSTANT MESSAGING. Online Learning, Boston, MA, v. 10, n. 4, 2019. DOI: 10.24059/olj.v10i4.1751. Disponível em: https://olj.onlinelearningconsortium.org/index.php/olj/article/view/1751. Acesso em: 25 mar. 2026.