1. Global Market Forecast: 2011–2030;Airbus,2011
2. Global Market Forecast: 2014–2033;Airbus,2014
3. World Airlines traffic and Operations;Airlines for America,2015
4. Canadian Air Transportation Security Authority, Annual Reports, 2003-2014; 2003-2006:http://publications.gc.ca/collections/Collection/CC401-2003E.pdf,/CC401-2004E.pdf,/CC401-2005E.pdf,/CC401-2006E.pdf, 2007-2014: http://www.catsa.gc.ca/corporate-publications.
5. The Transportation Security Administration and the Aviation Security Fee;US House of Representatives; Committee on the Budget,2013