SIDMAN, M. K&S: then and now. Mexican Journal of Behavior Analysis, [S. l.], v. 46, n. 1, 2020. DOI: 10.5514/rmac.v46.i1.76965. Disponível em: https://revistas.unam.mx/index.php/rmac/article/view/76965. Acesso em: 4 may. 2024.