6-2. انگلیسی
chandler, Adrian with Brown Ian, law of contract , questions and answers, seventh ed, New york, oxford university, press inc, 2010.
Friedman, David Adam, Bringing order to contracts agaist public policy ,Florida state university rewiew, vol.39, 2012.
Jill Poole, Casebook on contract law, ed.8, oxford university press, 2006.
Ghodoosi, Farshad The Concept of Public Policy in Law: Revisiting the Role of the Public Policy Doctrine in the Enforcement of Private Legal Arrangements, Nebraska Law Review, 2016.
Lawarée ,Valentin, Public Policy in English and American Law, Academiejaar 2013-2014, Masterproef van de opleiding ‘Master in de rechten’ Commissaris: Buyssens Floortje Universiteit Gent, Vol. 94:685 2016 .
palgrave Macmillan and Ewan Mekendrick, contract law, ed.9, printed in great Britain, 2011.
Richards , Paul, law of contract, fifth ed., longman press, Great Britain, 2002.
Stephen A. , Smith, Atiyah,s introduction to the law of contract, sixth ed., Clarendon press, oxford, 2006.
Stone, Richard, the modern law of contract.,eight ed., Routledge.Cavadish, London and new york , 2009.
Smith and Thomas, Acasebook on contract,Ninth ed., Sweet and Maxwell, London,1992.
Waddams, Stephens, Dimensions of Private Law, first ed.,Cambridge University Press , 2003.
Waddams, Stephens, Principle and Policy In Contract Law,Cambridge University Press, 2011.
6-3. فرانسه
Terre, Francois et Simler, Phillipe et Lequette,Yves, droit civil, les obligations, dalloz, 9 ed., paris, 2005.
Brigitte Hess-Fallon et Anne- Marie Simon , Droit Civil,Aide-Memore, 10 edition, Dalloz, Paris, 2010.