IVY, C.; RODOLFO, C. THE USE OF SAND PAPER LETTERS IN TEACHING THE ENGLISH ALPHABET . PUPIL: International Journal of Teaching, Education and Learning, [S. l.], v. 2, n. 3, p. 55–62, 2018. DOI: 10.20319/pijtel.2018.23.5562. Disponível em: https://grdspublishing.org/index.php/PUPIL/article/view/1405. Acesso em: 29 apr. 2024.