BRUNER, C. A.; ÁVILA, R. Acquisition and maintenance of lever pressing by rats without explicit reinforcer deprivation. Mexican Journal of Behavior Analysis, [S. l.], v. 28, n. 2, p. 107–103, 2011. DOI: 10.5514/rmac.v28.i2.26324. Disponível em: https://revistas.unam.mx/index.php/rmac/article/view/26324. Acesso em: 13 may. 2024.