Barrow, Tony
Inside the music business
Routledge , 1995
Buku Teks
Mouzon, Olin T.
International resources and national policy
Harper, 1959
Buku Teks
Natural resources and international development
edited by Marion Clawson
John Hopkins Press, 1965
Buku Teks
Czinkota, Michael R.
International business
The Dryden Press , 1996
Buku Teks
Wild, John J.
International business
Prentice-Hall, 2003
Buku Teks