Education of english speaking countries and uzbekistan

References

1. 
    Crystal 2006, pp. 424–426.
   
2. 
   "Summary by language size". Ethnologue: Languages of the World. Retrieved 10 February 2015.
   
3. 
   Crystal, David (2003). English as a Global Language (2nd ed.). Cambridge University Press. p. 69. ISBN 978-0-521-53032-3.
   
4. 
   Ryan 2013, Table 1.
   
5. 
   Office for National Statistics 2013, Key Points.
   
6. 
   National Records of Scotland 2013.
   
7. 
   Northern Ireland Statistics and Research Agency 2012, Table KS207NI: Main Language.
   
8. 
   Statistics Canada 2014.
   
9. 
   Australian Bureau of Statistics 2013.
   
10. 
    Statistics New Zealand 2014.
    
11. 
    Data are from national censuses conducted in 2010 or 2011 in the reported countries.
    
12. 
    Statistics South Africa 2012, Table 2.5 Population by first language spoken and province (number).
    
13. 
     Crystal 2004b