BIBLIOGRAPHY

P. Samuelson, W.D. Nordhaus, (2010), Economics, Boston: McGraw-Hill.

N.G. Mankiw, M.P. Taylor, (2015), Economics, Andover: Cengage learning.

R.H. Frank, B.S. Bernanke, K. Antonovics, O. Heffetz, (2017), Principles of Economics, New York: McGraw-Hill.