1. Ackermann S (2015) White House admits: we didn’t know who drone strike was aiming to kill. The Guardian. http://www.theguardian.com/world/2015/apr/23/drone-strike-al-qaida-targets-white-house . Accessed 9 July 2015
2. Al-Karama (2015) Traumatising Skies: U.S. Drone Operations and Post-Traumatic Stress Disorder (PTSD) among Civilians in Yemen. http://en.alkarama.org/component/k2/1764-yemen-alkarama-s-report-2015-traumatising-skies-u-s-drone-operations-and-post-traumatic-stress-disorder-ptsd-among-civilians-in-yemen?Itemid . Accessed 4 July 2015
3. Alston P (2010) Study on targeted killings. In: Report of the UN Special Rapporteur on extrajudicial, summary, or arbitrary executions. https://treaties.un.org/doc/Publication/UNTS/Volume%20999/volume-999-I-14668-English.pdf . Accessed 9 July 2015
4. Amnesty International (2012) Will I be next? US drone strikes in Pakistan. http://www.amnestyusa.org/research/reports/will-i-be-next-us-drone-strikes-in-pakistan . Accessed 7 July 2015
5. Arms Trade Treaty (2013). http://www.thearmstradetreaty.org/index.php/en/ . Accessed 10 Oct 2015