PULIDO RULL, M. A.; HERNÁNDEZ, C.; PEÑA, L. M.; PONCE, N. M.; REBOLLEDO, M. The Operant Conditioning of Letter String Problem Solving. Mexican Journal of Behavior Analysis, [S. l.], v. 36, n. 3, p. 55–76, 2010. DOI: 10.5514/rmac.v36.i3.21375. Disponível em: https://revistas.unam.mx/index.php/rmac/article/view/21375. Acesso em: 14 may. 2024.