4Schaufeli WB, Salanova M, Gonzalez-Roma V, et al. The measurement of engagement and burnout: a confirmatory analytic approach. Journal of Happiness Studies, 2002, 3:71-92.
5Schaufeli WB, Bakker AB. Utrecht Work Engagement Scale, Preliminary Manual (version 1, November 2003).
6Li L, Wang HM, Shen Y. Chinese SF-36 Health Survey:translation, cultural adaptation, validation and normalization. Journal of Epidemiology and Community Health, 2003, 57(4): 259-263.
7Rothman S, Storm K. Work engagement in the South African police service. Poster presented at the 11th European Congress of Work and Organizational Psychology,Lisbon, Portugal, 2003.
8Seligman MEP, Csikszentmihalyi M. Positive psychology:an introduction. American Psychologist, 2000, 55:5-14.