John, Stewart (November 1980). "Kumite: A Learning Experience". Black Belt. Active Interest Media, Inc. pp. 28–34. Archived from the original on January 26, 2019.
Richards, David (September 4, 1994). "FILM; Jean-Claude Van Damme, the, uh, Actor?". The New York Times. Retrieved August 8, 2010.; Cater, Dave (May 1987). "Bloodsport – The Ultimate Martial Arts Movie". Inside Kung Fu Presents the Complete Guide to Ninja Training: 38–47.
John, Stewart (November 1980). "Kumite: A Learning Experience". Black Belt. Active Interest Media, Inc. pp. 28–34. Archived from the original on January 26, 2019.