Lamb, George P.
Trade association law and practice
Little,Brown and Company, 1971
 Buku Teks
D`arcy, Leo
Schmitthoff`s exfort trade the law and practice of international trade
Sweet and Maxwell, 2000
 Buku Teks
Davidson, George
Electricity in the home / George Davidson, L. C. Lamb
Hodder and stoughton, 1989
 Buku Teks
Schmitthoff, Clive M.
Schmitthoff's export trade: the law and practice of international trade/ Clive M. Schmitthoff
Stevens & Sons, 1990
 Buku Teks
Schmitthoff, Clive M.
The export trade : the law and practice of international trade / by Clive M. Schmitthoff
Stevens and Sons Limited, 1975
 Buku Teks