1. American Nurses Association 2011 ANA recognized terminologies that support nursing practice http://www.nursingworld.org/Terminologies
2. Coenen , A. 2003 Nursing classifications “The International Classification for Nursing Practice (ICNP®) programme: Advancing a unifying framework for nursing.” Online Journal of Issues in Nursing http://nursingworld.org/ojin/tpc7/tpc7_8.htm
3. Collaborative efforts for representing nursing concepts in computer-based systems: International perspectives;Coenen;Journal of the American Medical Informatics Association,2001
4. Nurses' experiences of and opinions about using standardised care plans in electronic health records;Dahm;-,2008
5. Department of Veteran Affairs 2009 VANOD Annual quick fact sheet version 2.2