OLIPHANT, K. Teacher Development Groups: Growth Through Cooperation. Íkala, Revista de Lenguaje y Cultura, [S. l.], v. 1, n. 1-2, p. 67-86, 1996. Disponível em: https://revistas.udea.edu.co/index.php/ikala/article/view/8035. Acesso em: 17 jan. 2022.