J. F. de Salles, M. A. de M. P. Parente, and L. B. de L. Freitas, “ Children’s reading/writing: comparison among groups of different public schools ”, Paidéia (Ribeirão Preto), vol. 20, no. 47, pp. 335–344, Dec. 2010, doi: 10.1590/S0103-863X2010000300006.