1. ABC World Airways Guide. Various issues. ABC World Airways Guide Monthly ABC World Airways Guide (Red Book). Beds: Read Travel.
2. Australian Bureau of Statistics [ABS] various issues. Overseas arrivals and departures, Category 3401.0. Retrieved from: .
3. VFR travel: An examination of the expenditures of VFR travellers and their hosts;Backer;Current Issues in Tourism,2007
4. Opportunities for commercial accommodation in VFR;Backer;International Journal of Tourism Research,2010
5. VFR travel: It IS underestimated;Backer;Tourism Management,2011