THE SCIENCE
OF SUBMISSION
1
The Science of Submission
A Principle-Based Approach
To Brazilian Jiu-Jitsu
by Michael Jen and Geoffrey M. Gluckman MSc.
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+ Michael Jen's Ultimate Mount Escapes DVD
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Digital E-book Download
+ Michael Jen's Ultimate Mount Escapes DVD
+ Ultimate Guard Passing 2:
Counters to the Basics DVD
US$70 US$47