HERMANN, J. A.; SEMB, S.; HOPKINS, B. L. Effects of Formal “Grammar” and “Direct Method” Training on the Number of Errors in Compositions Written by Sixth-Graders. Mexican Journal of Behavior Analysis, [S. l.], v. 2, n. 1, p. 68–84, 2011. DOI: 10.5514/rmac.v2.i1.25252. Disponível em: https://revistas.unam.mx/index.php/rmac/article/view/25252. Acesso em: 4 may. 2024.