Nelson, Carl A.
Import/export : how to get started in international trade/Carl A. Nelson
McGraw-Hill, 2000
Buku Teks
A Handbook of world trade
London, 2004
Buku Teks
Root, Franklin R.
International trade and investment
South-Western Publishing, 1978
Buku Teks
Root, Franklin R.
International trade and investment
International Thompson Publishing, 1994
Buku Teks
Levinson, Charles
International trade unionism
George Allen & Uniwin, 1972
Buku Teks