Brito, Raíssa Martins, and Maria Angélica Freire de Carvalho. “Reading Comprehension Levels in a Portuguese Language Textbook: an Analysis of Reading Questions”. Linha D’Água, vol. 34, no. 3, Dec. 2021, pp. 45-64, https://doi.org/10.11606/issn.2236-4242.v34i3p45-64.