SKJELBRED, Dagrun. Teachers’ Guides in Textbook Research. IARTEM e-journal, Kongsberg, Norway, v. 1, n. 1, p. 25–35, 2007. DOI: 10.21344/iartem.v1i1.803. Disponível em: https://iartemejournal.org/index.php/IARTEM/article/view/803.. Acesso em: 8 nov. 2025.