1. Multiple regression: Testing and interpreting interactions;Aiken,1991
2. Anon. (2005, July 12). Waitrons the face of leisure industry. The Citizen (p. 2).
3. Emotional labour in service roles: The influence of identity;Ashforth;Academy of Management Review,1993
4. Crossover of burnout and engagement in work teams;Bakker;Work and Occupations,2006
5. Bamford, H. (2004, November 6). Waiters form union to put an end to ‘abuse’. Saturday Weekend Argus (p. 7).