1. Annual report 2013;Singapore Nursing Board,2013
2. World health assembly: prevention of violence, a public health pirority Geneva, Switzerland;World Health Organisation,1996
3. Horizontal violence: a conundrum for nursing;Duffy;Collegian,1995
4. National Health Service. Briefing note: issues highlighted by the 2014 NHS staff survey 2014 [29/March/2015]. Available from: http://www.nhsstaffsurveys.com/Caches/Files/NHS%20staff%20survey_nationalbriefing_Final%2024022015%20UNCLASSIFIED.pdf.
5. Violence toward nurses, the work environment, and patient outcomes;Roche;J Nurs Scholarsh,2010