Model commercial contracts and letters
Central Chambers Law Corporation
Sweet & Maxwell Asia, 2012
 Buku Teks SO
Dolan, John F.
The law of letters of credit commercial and standby credits
Warren, Gorham & Lamont, 1991
 Buku Teks SO
Dolan, John F.
The law of letters of credit commercial and standby credits
Warren, Gorham & Lamont, 1996
 Buku Teks SO
Commentary on the UNIDROIT principles of international commercial contracts (PICC)
Stefan Vogenauer, editor
Oxford University Press, 2015
 Buku Teks
Montagu, Mary Wortley
Letters
Knopf, 1992
 Buku Teks SO