Frank, R. H., & Robert H. Frank; Ben S. Bernanke. Principles of micro economics. Boston: McGraw-Hill/Irwin.

Frank, Robert H., و Robert H. Frank; Ben S. Bernanke. Principles of Micro Economics. Boston: McGraw-Hill/Irwin.

Frank, Robert H., و Robert H. Frank; Ben S. Bernanke. Principles of Micro Economics. Boston: McGraw-Hill/Irwin.