1. Thomas L. Friedman, The World Is Flat; A Brief History of the Twenty-first Century (New York: Farrar, Straus and Giroux, 2005), p. 48.
2. Thomas L. Friedman, Hof, Flat, and Crowded: Why We Need a Green Revolution — and How It Can Renew America (New York: Farrar, Straus and Giroux, 2008), p. 26.
3. Hill, Charles W. L., International Business, 7th edn (New York and London: McGraw-Hill International Edition, 2005).
4. Robin Kramar, Human Resource Management in a Global Context: A Critical Approach (New York: Palgrave Macmillan, 2012)
5. Ronald P. Babin and Brian Nicholson, Sustainable Global Outsourcing: Achieving Social and Environmental Responsibility in Global IT and Business Process Outsourcing (New York: Palgrave Macmillan, 2012)