1. International Monetary Fund. 〈http://www.imf.org〉.
2. USA Government Spending. 〈http://www.usgovernmentspending.com〉.
3. 〈http://investorschool.ru/gosdolg-stran-mira-2017〉.
4. 〈http://svspb.net/danmark/gosudarstvennyj-dolg-stran.php〉.
5. Eurostat. 〈http://epp.eurostat.ec.europa.eu/portal/page/portal/eurostat/home/〉.