1. american Nurses association. (2001). Code of ethics for nurses. Washington Dc: author.
2. Why plagiarism matters;Bellack J.P.;Journal of Nursing Education,2004
3. Burkhardt m.a. & Nathaniel a.K. (2002). Ethics and issues in contemporary nursing (2 nd ed.). albany Ny: Delmar thomson learning.
4. the problem of plagiarism;Dimensions of Critical Care Nursing,2003
5. Duke university libraries. (2001). Avoiding plagiarism: Practical strategies. retrieved February 15 2005 from http://www.lib.duke.edu/libguide/ plagiarism2.htm