- American Staffing Associationwww.americanstaffing.net
- U.S. Department of Labor www.dol.gov
- U.S. Bureau of Labor Statisticswww.bls.gov
- U.S. Department of Health & Human Serviceswww.hhs.gov
- Maryland Department of Healthwww.health.maryland.gov
- Maryland Board of Nursingwww.mbon.maryland.gov
