Czinkota, Michael R.
South Western Cengage Learning, 2013
Buku Teks
Cateora, Philip R.
McGraw-Hill, 2008
Buku Teks
Masaaki Kotabe
John Wiley & Sons, 2015
Buku Teks
Thorelli, H.B.
Penguin Books, 1973
Buku Teks
Dahringer, Lee D.
Addison-Wesley, 1991
Buku Teks