“THE CHALLENGE OF LEARNING IN THE DIGITAL AGE. AN ANALYSIS OF THE DER (School textbook, Portuguese Language, 12th year)” (2016) TICs & EaD em Foco, 2(2). Disponível em: https://ticsead.uemanet.uema.br/index.php/ticseadfoco/article/view/108 (Acesso em: 27 setembro 2025).