Daniels, John D.
International business : environments and operations
Addison-Wesley, 1994
 Buku Teks
Daniels, John D.
International business environments and operations
Addison-Wesley, 1982
 Buku Teks
Kline, John M.
International codes and multinational business : setting guidelines for international business operations
Quorum Books, 1985
 Buku Teks
Daniels, John D.
International business : environments and operations / John D. Daniels, Lee H. Radebaugh
Addison-Wesley , 1986
 Buku Teks
Dool, J.H.
Business machine operations and applictions
McGraw-Hill, 1977
 Buku Teks