ILLUM HANSEN, Thomas; TOKE GISSEL, Stig. Quality of learning materials. IARTEM e-journal, Kongsberg, Norway, v. 9, n. 1, p. 122–141, 2017. DOI: 10.21344/iartem.v9i1.601. Disponível em: https://mail.iartemejournal.org/index.php/IARTEM/article/view/601.. Acesso em: 19 apr. 2026.