Fletcher, David C. and MacPhail, Doug. Harvard! the North American Trainers in Canada. San Josef,BC/Dundee,Ont: DCF Flying Books, 1990. ISBN 0-9693825-0-2.
Hagedorn, Dan. North American NA-16/AT-6/SNJ (WarbirdTech Volume 11). North Branch, MN: Speciality Press, 1997. ISBN 0-933424-76-0.
MacPhail, Doug and Östberg, Mikael. Triple Crown BT-9: The ASJA/Saab Sk 14, A Pictorial Essay (in English/Swedish). San Josef,BC/Dundee,Ont: DCF Flying Books, 2003.
Smith, Peter Charles. North American T-6: SNJ, Harvard and Wirraway. Ramsbury, Marlborough, Wiltshire, UK: The Crowood Press Ltd., 2000. ISBN 1-86126-382-1.
Starkings, Peter. From American Acorn to Japanese Oak - The tale of an unsung Japanese training aircraft with roots extending across the Pacific Ocean. Arawasi International, Asahi Process, September–December 2007, Issue 7.
von Rauch, Georg and David L. Veres Argentina's Wooden Warriors. Air Classics, Challenge Publications, March 1983, Volume 19 Issue 3 pages 14–21.