- Licensed Practical Nurse (LPN) vs Certified Nursing Assistant (CNA)www.practicalnursing.org
- American Staffing Associationwww.americanstaffing.net
- U.S. Department of Laborwww.dol.gov
- U.S Department of Health and Human Serviceswww.hhs.gov
- International Council of Nurseswww.icn.ch
- National Institutes of Healthwww.health.nih.gov
