Wilson, J. F.
Principles of the law of contract
Sweet & Maxwell, 1957
 Buku Teks
Alsagoff, Syed Ahmad
Principles of the Law of Contract in Malaysia
LexisNexis, 2010
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Smith, James Cruickshanks, 1867-1946
Fundamental Principles of Law The Law of Contract
Sweet & Maxwell, 1989
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Anson, William R., Sir
Principles of the law of contract : with a chapter on the law of agency
Oxford University Press, 1930
 Buku Teks
Brooks, Brian S.
Contract of employment principles of Australian employ-ment Law
Tax and Business Law Publishers, 1990
 Buku Teks