MONGE LEZCANO, Fiorella. The perception of teenagers on the causes of spelling difficulties, through the qualitative testimony technique: an approach to the study of spelling in a group of ninth grade students in the Lic. Mario Vindas Salazar school. Acta Universitaria, [S. l.], v. 24, n. 2, p. 20–26, 2014. DOI: 10.15174/au.2014.477. Disponível em: https://www.actauniversitaria.ugto.mx/index.php/acta/article/view/477. Acesso em: 6 may. 2026.