
http://visionofhumanity.org/app/uploads/2017/06/GPI-2017-Report-1.pdf

https://openknowledge.worldbank.org/bitstream/handle/10986/29498/9781464812521.pdf

https://www.who.int/dg/speeches/detail/who-director-general-s-opening-remarks-at-the-media-briefing-on-covid-19—16-march-2020