112 
 
Loren Baritz, The Servants of Power, Middletown, CT: Wesleyan University Press, 1960 г.
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Thomas Frank, The Conquest of Cool: Business Culture, Counterculture, and the Rise of Hip Consumerism, Chicago: University of Chicago Press, 1997 г.
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Gallup, Inc., State of the Global Workplace: Employee Engagement Insights for Business Leaders Worldwide, gallup.com, 2013 г.
  115 
 
Тот же источник.
  116 
 
David MacLeod and Nita Clarke, ‘Engaging for Success: Enhancing Performance Through Employee Engagement, A Report to Government', Department for Business, Innovation & Skills, bis.gov.uk, 2011 г.