Combat flight simulation game (English Wikipedia)

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"Tomohiro Nishikado's biography at his company's web site". Dreams, Inc. Archived from the original on 1 April 2009. Retrieved 27 March 2011.

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"結果ベスト3" [Best 3 Results] (PDF). Game Machine (in Japanese). No. 90. Amusement Press, Inc. 15 February 1978. p. 2.

"[Development] UH-1 and Mi-4: Early Birds". warthunder.com. Archived from the original on 23 September 2019. Retrieved 23 September 2019.

D.S. Cohen, Killer Shark: The Undersea Horror Arcade Game from Jaws, About.com, archived from the original on 17 July 2011, retrieved 3 May 2011
"Tomohiro Nishikado's biography at his company's web site". Dreams, Inc. Archived from the original on 1 April 2009. Retrieved 27 March 2011.
Pearl, Rick (June 1983). "Closet Classics". Electronic Games. p. 82. Archived from the original on 7 January 2015. Retrieved 6 January 2015.
"[Development] UH-1 and Mi-4: Early Birds". warthunder.com. Archived from the original on 23 September 2019. Retrieved 23 September 2019.

"結果ベスト3" [Best 3 Results] (PDF). Game Machine (in Japanese). No. 90. Amusement Press, Inc. 15 February 1978. p. 2.