Nihon Bussan (English Wikipedia)

"Nichibutsu Fact Book Archived 2010-02-21 at the Wayback Machine." Nihon Bussan. Retrieved on February 19, 2010.
Sphinx also released the game in the name of Nihon Bussan and it is listed on the home page. Mahjong Hanafuda product list Archived 2013-07-04 at the Wayback Machine

onitama.tv

"Best Hit Games 25" (PDF). Game Machine (in Japanese). No. 246. Amusement Press, Inc. 15 October 1984. p. 31.
"Best Hit Games 25" (PDF). Game Machine (in Japanese). No. 247. Amusement Press, Inc. 1 November 1984. p. 31.
"Best Hit Games 25" (PDF). Game Machine (in Japanese). No. 250. Amusement Press, Inc. 15 December 1984. p. 29.
"Best Hit Games 25" (PDF). Game Machine (in Japanese). No. 251. Amusement Press, Inc. 1 January 1985. p. 37.

Sharpe, Roger C. (July 15, 1985). "Critic's Corner" (PDF). Play Meter. Vol. 11, no. 13. pp. 25–31.

"Notice Regarding Company Dissolution" (in Japanese). Civil Legal Association. December 2015. Archived from the original on December 6, 2020. Retrieved December 5, 2020.

"Nichibutsu Fact Book Archived 2010-02-21 at the Wayback Machine." Nihon Bussan. Retrieved on February 19, 2010.
"Yacht impressions page". Archived from the original on 2019-02-18. Retrieved 2014-11-18.
Sphinx also released the game in the name of Nihon Bussan and it is listed on the home page. Mahjong Hanafuda product list Archived 2013-07-04 at the Wayback Machine
"Notice Regarding Company Dissolution" (in Japanese). Civil Legal Association. December 2015. Archived from the original on December 6, 2020. Retrieved December 5, 2020.
Shooting Game Side Volume 10 (September 26, 2014, Japanese) Archived 2014-10-20 at the Wayback Machine
"Project EGG – participating companies list". Amusement-Center.com (in Japanese). Archived from the original on 2013-03-18. Retrieved 2014-11-18.
Moon Cresta, Crazy Climber, the last update of the trademark rights of the family Mahjong has become in 2007. Industrial Property Digital Library – trademark search

"Best Hit Games 25" (PDF). Game Machine (in Japanese). No. 246. Amusement Press, Inc. 15 October 1984. p. 31.