Human Development Index 2011, hdr.undp.org/es/content/table-2-human-development-index-trends-1980-2013 and http://www.datosmacro.com/idh?anio=2011, viewed 17th January, 2015.
Citation
Human Development Index 2011, ChartsBin.com, viewed 22nd December, 2024, <http://chartsbin.com/view/31035>.