Butterfly sword (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Butterfly sword" in English language version.

refsWebsite

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books.google.com

Judkins, Benjamin N.; Nielson, Jon (2015). The Creation of Wing Chun. SUNY Press. pp. 93–94. ISBN 978-1-4384-5695-9.
Joseph Wayne Smith (15 December 1992). Wing Chun Kung-Fu: Weapons & Advanced Techniques. Tuttle Publishing. pp. 45–. ISBN 978-0-8048-1720-2. Retrieved 18 July 2012.
Active Interest Media, Inc. (June 1983). "Black Belt". Black Belt. Buyer's Guide. Black belt magazine. Active Interest Media, Inc.: 44–. ISSN 0277-3066. Retrieved 18 July 2012.
Garrett Gee; Benny Meng; Richard Loewenhagen (2004). Mastering Kung Fu: Featuring Shaolin Wing Chun. Human Kinetics. pp. 188–. ISBN 978-0-7360-4568-1. Retrieved 18 July 2012.

Active Interest Media, Inc. (June 1983). "Black Belt". Black Belt. Buyer's Guide. Black belt magazine. Active Interest Media, Inc.: 44–. ISSN 0277-3066. Retrieved 18 July 2012.