SZKUTNIK, Leszek L. Perceptive and Expressive Skills in Language Learning. Glottodidactica, [S. l.], v. 1, p. 125–126, 2019. DOI: 10.14746/gl.1966.1.09. Disponível em: https://pressto.amu.edu.pl/index.php/gl/article/view/18258. Acesso em: 25 lis. 2024.