Learning ser and estar in a Spanish speaking country: How can instruction help?. Estudios de Lingüística Aplicada, [S. l.], n. 51, 2016. DOI: 10.22201/enallt.01852647p.2010.51.515. Disponível em: https://ela.enallt.unam.mx/index.php/ela/article/view/515. Acesso em: 5 jul. 2025.