VV.AA., V. 7 Pistas...en busca del valor perdido. Padres y Maestros / Journal of Parents and Teachers, [S. l.], n. 104-103, p. 4–7, 2015. Disponível em: https://revistas.comillas.edu/index.php/padresymaestros/article/view/5270. Acesso em: 25 abr. 2024.