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| 제 목 |
iuGDAoFjmVYKMidVix |
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| 이 름 |
Ramon |
날 짜 |
2018/06/28 |
조 회 |
1 |
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Which university are you at? healthinformatics.com.ph Both Nielsen and Arbitron use devices - with Nielsen the "people meter" and with Arbitron the "portable people meter," (PPM) a pager-like device that measures what radio station people listen to - which measure consumer demographics.
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