Do Rank Certificates Really Mean Anything? By Phil Duncan | 06/02/2012 | 0 Last Updated: Wednesday, October 23, 2013 Posted in Accreditation, Certification, Dan Rank Tests, Gup Rank Tests, Master Rank Testing, Rank Tests ← Soo Bahk Do For Those In The KnowJae Chul Shin 1936-2012 →
