SILBERSTEIN, Sandra. Outtakes from Reader’s Choice: Issues in Material Development. TESL Canada Journal, [S. l.], v. 4, n. 2, p. 82–95, 1987. DOI: 10.18806/tesl.v4i2.508. Disponível em: https://teslcanadajournal.ca/index.php/tesl/article/view/508. Acesso em: 4 may. 2024.