Mason, R. Hal (Robert Hal), 1929-
International business
John Wiley & Sons, 1981
 Buku Teks
Vernon, Raymond
Economic environment of international business
Prentice-Hall, 1981
 Buku Teks
Vernon, Raymond
The Economic environment of international business
Prentice-Hall, 1972
 Buku Teks
Vernon, Raymond
Manager in the international economy
Prentice-Hall, 1981
 Buku Teks
Ball, Donald A.
International business : the challenge of global competition
Irwin McGraw-Hill, 1999
 Buku Teks