HÖLBL, M.; WELZER, T. Students’ Feedback and Communication Habits using Moodle. Elektronika ir Elektrotechnika, [S. l.], v. 102, n. 6, p. 63-66, 2010. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/9354. Acesso em: 7 oct. 2022.