Foreign Language in the Elementary School (FLES): a Curriculum Proposal for First Grades. LETRAS, [S. l.], n. 29-30, p. 201–224, 1994. DOI: 10.15359/rl.1-29-30.11. Disponível em: https://www.revistas.una.ac.cr/index.php/letras/article/view/4034.. Acesso em: 3 may. 2024.