SCHUGAR, Heather R.; DREHER, Mariam Jean. U. S. fourth graders’ ınformational text comprehension: ındicators from NAEP. International Electronic Journal of Elementary Education, [S. l.], v. 9, n. 3, p. 523–552, 2017. Disponível em: https://www.iejee.com/index.php/IEJEE/article/view/175. Acesso em: 4 aug. 2026.