Easterbrook G. The Real Truth About Money // TIME. January 9, 2005 // (по состоянию на апрель 2018 г.); Collishaw S., Maughan B., Natariaian L., Pickles A. Trends in adolescent emotional problems in England: a comparison of two national cohorts twenty years apart // Journal of Child Psychology and Psychiatry, 2010. Pp. 885–894.
