SOLÍS HERNÁNDEZ, M. Reliable And Practical Guidelines For Planning An Effective English Lesson. Revista de Filología y Lingüística de la Universidad de Costa Rica, [S. l.], v. 33, n. 2, p. 227–241, 2012. DOI: 10.15517/rfl.v33i2.1748. Disponível em: https://revistas.ucr.ac.cr/index.php/filyling/article/view/1748. Acesso em: 22 dic. 2024.