LEWIS, Wiley B.; WOODIN, Ralph J. A Procedure For Determining If A Significant Difference Exists Between Two Percentages Calculated From Independent Samples. Journal of Agricultural Education, [S. l.], v. 12, n. 2, p. 1–14, 1971. DOI: 10.5032/jaatea.1971.02001. Disponível em: https://jae-online.org/index.php/jae/article/view/1793. Acesso em: 13 jul. 2024.