https://www.prdaily.com/ragan_speakers/johna-burke/
Johna Burke - PR Daily
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https://www.axiapr.com/blog/learn-the-barcelona-principles-4.0-for-pr-measurement-with-johna-burke
Learn the Barcelona Principles 4.0 for PR measurement with Johna Burke | On Top of PR with Jason...
Johna Burke explains the Barcelona Principles 4.0 and PR measurement best practices on On Top of PR.
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