5. The economic way of thinking Heyne, Paul T. Upper Saddle River, NJ : Prentice Hall, c2003. ECON101
6. The economic way of thinking Heyne, Paul T. Upper Saddle River, NJ : Prentice Hall, c2000. ECON101
7. Economy and society: an outline of interpretive sociology Weber, Max, 1864-1920, Berkeley : University of California Press, [2013] SOC205
9. Harvard business review Boston Graduate School of Business Administration, Harvard University. BUS552 BUS100 BUS130 BUS200 BUS304 BUS305 BUS408 BUS424 BUS460