1. U.S. Teen Demographics. Act for Youth. Retreived from https://actforyouth.net/adolescence/demographics.
2. Colby, S. L., & Ortman, J. M. (2015). Projections of the size and composition of the U.S. population: 2014 to 2060. Retrieved from census.gov/content/dam/Census/library/publications/2015/demo/p25-1143.pdf.
3. Johnson, K. M. & Lichter, D. L. The changing faces of America’s children and youth. 2010. Retrieved from http://scholars.unh.edu/carsey/107.
4. Jiang, Y., Ekono, M., & Skinner, C.. Basic facts about low-income children: children 12 through 17 years, 2014. 2016. Retrieved from http://nccp.org/publications/pub_1147.html.
5. Hooper, L. M., & Crusto, C. A. (2013). Ecological systems theory. In K. D. Keith (Ed.), Encyclopedia of cross-cultural psychology (pp. 456–460). Wiley-Blackwell. https://doi.org/10.1002/9781118339893