Simpson, Laurence P.
Handbook of the law of contracts
West Publishing, 1954
 Buku Teks
Bernacchi, Richard L.
Data processing contracts and the law
Brown and Company, 1974
 Buku Teks
Farnsworth, E. Allan
Contracts
Little, Brown, 1990
 Buku Teks
Burnham, Scott J.
Drafting contracts : a giude to the practical applicationof the principles of contract law
The Michie Company, 1993
 Buku Teks
Eisenberg, Melvin A.
Contracts Gilbert law summaries
Harcourt Brace, 1994
 Buku Teks