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https://thetales.co/2017/03/19/%ec%9d%b4%ec%95%bc%ea%b8%b0-13-%eb%94%94%ec%a7%80%ed%84%b8-%eb%a7%88%ec%bc%80%ed%8c%85%ec%9d%80-%ec%99%9c-audience%ec%97%90-%ec%a7%91%ec%a4%91%ed%95%98%eb%8a%94%ea%b0%80/
이야기 13. 디지털 마케팅은 왜 Audience에 집중하는가