Daniels, John D.
International business : environments and operations
Addison-Wesley, 1994
 Buku Teks SO
Daniels, John D.
International business environments and operations
Addison-Wesley, 1982
 Buku Teks SO
Daniels, John D.
International business : environments and operations
Addison-Wesley, 1994
 Buku Teks SO
Salvatore, Dominick
International economics
Prentice-Hall, 1998
 Buku Teks SO
Salvatore, Dominick
International economics
Macmillan, 1993
 Buku Teks SO