ZHANG, H. Toward an Early Start for Head Start Children: Evidence from a Literacy Enrichment Starting at Age Three. International Journal of Learning, Teaching and Educational Research, [S. l.], v. 20, n. 11, p. 255–271, 2021. Disponível em: http://www.ijlter.net/index.php/ijlter/article/view/730. Acesso em: 1 may. 2026.