MacGregor, H. (2004). European Contract Code. Edin. L.R., special issue, Vol.8, 2004, art.1(1).
McBryde, P.W. (2007). The Law of Contract in Scotland - para 1.15. (n.p.): Thomson W. Green.
Brotchie, N. (2009). The Scottish Law Commission: promoting law reform in Scotland. Legal Information Management L.I.M. 2009, 9(1), 30-34.