Polit, D. F.; Falbo, T. (1987), ”Only children and personality development: A quantitative review”, Journal of Marriage and the Family 49 (2): 309–325, doi:10.2307/352302.
Polit, D. F. & Falbo, T. (1987), ”Only children and personality development: A quantitative review”, Journal of Marriage and the Family 49: 309–325, doi:10.2307/352302.
Polit, D. F. & Falbo, T. (1988), ”The intellectual achievement of only children”, Journal of Biosocial Science 20: 275–285, doi:10.1017/S0021932000006611, PMID 3063715.
Downey, D. B. (2001), ”Number of siblings and intellectual development: The resource dilution explanation”, American Psychologist 56: 497–504, doi:10.1037/0003-066X.56.6-7.497.
go.com
abcnews.go.com
The Only Child Myth, By Juju Chang and Sara Holmberg, ABC News, Läst 25 augusti 2008.
nih.gov
ncbi.nlm.nih.gov
Polit, D. F. & Falbo, T. (1988), ”The intellectual achievement of only children”, Journal of Biosocial Science 20: 275–285, doi:10.1017/S0021932000006611, PMID 3063715.