1. Australian Bureau of Statistics Reflecting a Nation: Stories from the 2011 Census, 2012-2013 2012 http://www.abs.gov.au/ausstats/abs@.nsf/Lookup/2071.0main+features902012-2013
2. Department of Immigration 2011-2012 Migration Program Report 2012 http://www.immi.gov.au/media/statistics/pdf/report-on-migration-program-2011-2012.pdf
3. Department of Immigration and Citizenship Australia's Humanitarian Program 2013-2014 and Beyond 2012 http://www.immi.gov.au/media/publications/pdf/humanitarian-program-information-paper-2013-2014.pdf
4. Department of Immigration and Citizenship Australia's Offshore Humanitarian Program 2011-2012 2012 http://www.immi.gov.au/media/publications/statistics/immigration-update/australia_offshore_humanitarian_prog_2011-2012.pdf
5. Age and rate of acquisition of second language for academic purposes;Collier;TESOL Quarterly,1987