1.
Clayden J, Greeves N, Warren SG. Organic Chemistry. 2nd ed. Oxford University Press; 2012. http://ebookcentral.proquest.com/lib/nottingham/detail.action?docID=1591368
2.
Stuart Warren  and Paul Wyatt. Organic Synthesis : The Disconnection Approach. 2nd ed. John Wiley & Sons, Incorporated; 2011. https://ebookcentral.proquest.com/lib/nottingham/detail.action?docID=819215