Interactive Investor – 19 Apr 2013 http://www.iii.co.uk/articles/87863/should-i-buy-shares-glaxosmithkline
Reuters – 19 Apr 2013 http://www.reuters.com/article/2013/04/19/us-glaxosmithkline-antitrust-idUSBRE93I07720130419
Guardian – 19 Apr 2013 http://www.guardian.co.uk/business/marketforceslive/2013/apr/19/UK Index -100-higher-miners
Reuters – 19 Apr 2013 http://uk.reuters.com/article/2013/04/19/uk-markets-britain-stocks-idUKBRE8710BE20130419