OLIVEIRA-CASTRO, J. M.; HARZEM, P. Level of Aspiration and the concept of goal. Mexican Journal of Behavior Analysis, [S. l.], v. 16, n. 1, p. 41–53, 2011. DOI: 10.5514/rmac.v16.i1.23355. Disponível em: https://revistas.unam.mx/index.php/rmac/article/view/23355. Acesso em: 28 apr. 2024.