DE MORALES FERRARI, E. A. Negative reinforcement in pigeons: Problems in selecting the response. Mexican Journal of Behavior Analysis, [S. l.], v. 4, n. 2, 2011. DOI: 10.5514/rmac.v4.i2.23671. Disponível em: https://revistas.unam.mx/index.php/rmac/article/view/23671. Acesso em: 18 jul. 2024.