2American Library Association, Flora Belle Ludington.Code of ethics for librarians [EB/OL].[2012-01-10].http ://www. ala.org/advocacy/proethics/history/index5.
6Smuel F Sear,etc.Examining a stress-coping model of burnout and depression in extension agents[J].Journal of Occupational Health Psychology,2001(5):56-02.
7BarryA Farber.Crisis in Education[M].San Franciso:Jossey-Bass Publishers,1991.
