1. American Association of College of Nursing 2004 AACN position statement on the practice doctorate in nursing http://www.aacn.nche.edu/DNP/DNPPositionStatement.htm
2. American Association of College of Nursing 2006 The essentials of doctoral education for advanced nursing practice http://www.aacn.nche.edu/DNP/pdf/Essentials.pdf
3. ANA funds certification program for two years: New areas added;American Nurses Association;American Journal of Nursing,1978
4. National certification: An idea that's here for good;American Nurses Association;The American Nurse,1981