Horn, Paul V.
International trade principles and practices
Prentice-Hall, 1959
 Buku Teks
Horn, Paul V.
International trade : principles and practices
Prentice-Hall, 1955
 Buku Teks
Horn, Paul V.
International trade : principles and practices
Prentice-Hall, 1959
 Buku Teks
Houtte, Hans van
The law of international trade
Sweet and Maxwell, 1995
 Buku Teks
Houtte, Hans van
The law of international trade
Sweet and Maxwell, 1995
 Buku Referensi