1. United Nations Human Development Programme.
http://hdr.undp.org/en/humandev
2. National Research Council and Institute of Medicine. Children’s health, the nation’s wealth: assessing and improving child health. Washington, DC: National Academies Press; 2004.
3. Institute of Medicine and National Research Council. From Neurons to neighborhoods: an update: workshop summary. Washington, DC: National Academies Press; 2012.
4. Work and Family Researchers Network. Work and Family Glossary.
http://workfamily.sas.upenn.edu/glossary/c/child-development-definitions
5. North Carolina State University, Center for Universal Design.
http://www.ncsu.edu/ncsu/design/cud/about_ud/about_ud.htm