B. Milanovic and E.B. Kapstein. The World Bank. no. 2292. 2000.
P. Krugman. New York: W. W. Norton & Company. 1999.
J.C. Gornick, M.K. Meyers, and K.E. Ross. Social Science Quarterly. vol. 79, no. 1. pp. 34-54. 1998.
B. Milanovic and E.B. Kapstein. The World Bank. no. 2292. 2000.
P. Krugman. New York: W. W. Norton & Company. 1999.
J.C. Gornick, M.K. Meyers, and K.E. Ross. Social Science Quarterly. vol. 79, no. 1. pp. 34-54. 1998.