Chacholiades, Miltiades, author
McGraw-Hill, 1981
Buku Teks
Balassa, Bela
McGraw-Hill, 1967
Buku Teks
Gilpin, Robert, author
Princeton University Press, 1987
Buku Teks
Viner, Jocob
The Free Press , 1952
Buku Teks
Krugman, Paul R., author
Addison-Wesley, 2000
Buku Teks