R., K., P., Maurice, O.(2000).International economics : theory and policy / Paul R. Krugman, Maurice Obstfeld (Ed.ke-5 |(Ed.Internasional)).New York:.
Gaya MLA
Krugman, Paul, R.., Obstfeld, Maurice."International economics : theory and policy / Paul R. Krugman, Maurice Obstfeld".Ed.ke-5 |(Ed.Internasional)New York:,2000.Textbook.