KOUNATIDOU, T.; LIONARAKIS, A. Student Evaluation as a Tool for Improving Tutor Performance in Open and Distance Higher Education: A Conceptual Review with Reference to the Hellenic Open University. Journal of e-learning Research, [S. l.], v. 5, n. 1, p. 1–15, 2026. DOI: 10.33422/jelr.v5i1.1252. Disponível em: https://diamondopen.com/journals/index.php/jelr/article/view/1252. Acesso em: 21 aug. 2026.