COUTINHO DE ALCANTARA GIL, M. S.; MINTO DE SOUSA, N.; DAS GRAÇAS DE SOUZA, D. Two procedures for the introduction of differential reinforcement in teaching simple discrimination to infants. Acta Comportamentalia, [S. l.], v. 19, n. 2, 2011. Disponível em: https://journals.unam.mx/index.php/acom/article/view/28025. Acesso em: 19 may. 2024.