Helen Clark, The Most Powerful Women [online]. Forbes, 2006, [cit. 2008-11-12]. Dostupné online. (anglicky)
The World's 100 Most Powerful Women [online]. [Cit. 2012-05-31]. Dostupné online. (anglicky)
The World's 100 Most Powerful Women [online]. Forbes, 2014-6-24. Dostupné online. (anglicky)
The World's 100 Most Powerful Women [online]. Forbes, 2016-6-6. Dostupné online. (anglicky)
radionz.co.nz
Helen Clark stepping down from UN role [online]. 2017-1-26. Dostupné online. (anglicky)
stuff.co.nz
CREWDSON, Patrick. Clark gets UN job [online]. The Dominion Post, 2009-3-27, [cit. 2010-06-26]. Dostupné online. (anglicky)
theguardian.com
PILKINGTON, Ed. Helen Clark, former New Zealand PM, enters race for UN secretary general [online]. 2016-4-4, [cit. 2016-04-05]. Dostupné online. (anglicky)