Coba jelasin Model dari Mitsubishi G4M dong

G4M1 Model 11: 1172 buah (termasuk prototipe)

G4M2 model 22, 22 Ko and 22 Otsu: 429 buah

G4M2a, model 24, 24 Ko, 24 Otsu, 24 Hei, dan 24 Tei: 713 buah

G4M3 model 34 Ko, 34 Otsu, dan 34 Hei: 91 buah

Total produksi semua versi: 2,435 buah

Aoki, Hideo. "Kugisho Suicide Attacker "Oka" (MXY7) Baka." Airreview's Japanese Navy Aircraft In The Pacific War. Tokyo: Kantosha Co. Ltd., 1972.

Aoki, Hideo. "Mitsubishi Type 1 Attack Bomber (G4M) Betty." Airreview's Japanese Navy Aircraft In The Pacific War. Tokyo: Kantosha Co. Ltd., 1972.

Bridgwater, H.C. and Peter Scott. Combat Colours Number 4: Pearl Harbor and Beyond, December 1941 to May 1942. Luton, Bedfordshire, UK: Guideline Publications, 2001. ISBN 0-9539040-6-7.

Chant, Chris. Aircraft Of World War Two. London: Grange Books PLC., 2001. ISBN 1-84084-329-2.

Ferkl, Martin. Mitsubishi G4M Betty (in English). Praha, Czech Republic: Revi Publications, 2002. ISBN 80-85957-09-4.

Francillon, PhD., René J. Imperial Japanese Navy Bombers of World War Two. Windsor, Berkshire, UK: Hylton Lacy Publishers Ltd., 1969. ISBN 0-85064-022-9.

Francillon, PhD., René J. Japanese Aircraft of the Pacific War. London: Putnam & Company Ltd., 1979. ISBN 0-370-30251-6.

Francillon, PhD., René J. Mitsubishi G4M "Betty" & Okha Bomb (Aircraft in Profile 210). Windsor, Berkshire, UK: Profile Publications Ltd., 1971.

Fumio, Iwaya. Chuko (Medium Attack Bomber). Tokyo: Hara Shobo, 1958.

Green, William. Famous Bombers of the Second World War. London: Macdonald and Jane's Publishers Ltd., 1975 (Second edition of 1959 book, reprinted at least twice: 1976 and 1977). ISBN 0-356-08333-0.

Gunston, Bill. The Illustrated Encyclopedia of Combat Aircraft of World War II. London: Salamander Books Ltd., (Third impression ) 1979. ISBN 0-89673-000-X.

Horodyski, Joseph M. "British Gamble In Asian Waters". Military Heritage. Volume 3, No. 3, December 2001, pp. 68–77. (sinking of the British battleship Prince of Wales and battlecruiser Repulse by Japanese on 10 December 1941 upon U.S. entry into World War II).

Morgan, Eric B. "Mitsubishi G4M Betty." Twentyfirst Profile, Vol. 2, No. 17. New Milton, Hantfordshire, UK: 21st Profile Ltd., ISBN 0961812011 .

Nowicki, Jacek. Mitsubishi G4M "Betty" (in Polish). Warszawa, Poland: Wydawnictwo Militaria, 1998. ISBN 83-7219-020-8.

Tagaya, Osamu. Mitsubishi Type 1 Rikko Betty Units of World War 2. London: Osprey Publishing, 2001. ISBN 1-84176-082-X.

Thorpe, Donald W. Japanese Naval Air Force Camouflage and Markings World War II. Fallbrook, California: Aero Publishers Inc., 1977. ISBN 0-8168-6587-6 (pbk.), ISBN 0-8168-6583-3 (hc.).

Wheeler, Barry C. The Hamlyn Guide to Military Aircraft Markings. London: Chancellor Press, 1992. ISBN 1-85152-582-3.