- U.S. Bureau of Labor Statistics www.bls.gov
- U.S. Department of Health & Human Services www.hhs.gov
- U.S. Department of Laborwww.dol.gov
- Caregiving – Insights, Information, Inspirationswww.caregiving.com
- Inc.com: Motivating Employeeswww.inc.com/guides/hr/20776.html
