Ia biasanya tidak mengawal penjejak artileri/pesawat pemerhati; batalion artileri yang mengendalikan pesawat ringan dan belon yang beroperasi pada peranan ini.
Francillon, René J (1979). Japanese Aircraft of the Pacific War (2nd edition). London, UK: Putnam & Company Ltd. ISBN0-370-30251-6.CS1 maint: ref=harv (link)
Hata, Ikuhiko; Izawa, Yashuho; Shores, Christopher (2002). Japanese Army Air Force Units and Their Aces: 1931-1945. London: Grub Street. ISBN1-902304-89-6.
Hata, Ikuhiko; Izawa, Yashuho; Shores, Christopher (2012). Japanese Army Fighter Aces: 1931-45. Stackpole Military History Series. London, UK: Stackpole Books. ISBN1-461-75118-7.CS1 maint: ref=harv (link)
Mayer, S.L. (1976). The Rise and Fall of Imperial Japan. The Military Press. ISBN0-517-42313-8.
Sakaida, Henry (1997). Japanese Army Air Force Aces, 1937-1945. Botley, Oxfordshire, UK: Osprey Publishing. ISBN1-85532-529-2.
Skates, John Ray. The Invasion of Japan: Alternative to the Bomb. Columbia, South Carolina, USA: University of South Carolina Press, 1994. ISBN0-87249-972-3.
Stephenson, Charles (2017). The Siege of Tsingtau: The German-Japanese War 1914. Pen and Sword. ISBN1-52670-295-9.CS1 maint: ref=harv (link)