CADAVID, C. Teaching English in Primary School through a Spiral Thematic Curriculum. Íkala, Revista de Lenguaje y Cultura, [S. l.], v. 8, n. 1, p. 81-97, 2003. Disponível em: https://revistas.udea.edu.co/index.php/ikala/article/view/3180. Acesso em: 29 jan. 2022.