What are the three essential ingredients of research tools as PR moves through the 20th century?
Do you think they will continue to be vital to measurement of PR and communications?
Which ones will continue to change and why?
How will PR be affected?

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The Answer of What are the three essential ingredients of research tools as PR moves through the 20th century?
Do you think they will continue to be vital to measurement of PR and communications?
Which ones will continue to change and why?
How will PR be affected?

What Are the Three Essential Ingredients of Research Tools as PR