|AviationHeritage.org - Working to document aviation heritage and history through the use of modern technologies|
|Curtiss P-40F, Lockheed Hudson, and CAC Boomerang (Daniel J. Leahy, 2014)|
Civil Aviation Safety Authority [CASA] n.f.d. CPI. Retrieved 31 October 2018 from <https://www.casa.gov.au/aircraft-register/cpi>.
Robertson, B. 1979 British Military Aircraft Serials, 1911-1979. Cambridge: Patrick Stephens Ltd.
Record updated on 31 October 2018.