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https://chacrit.wordpress.com/2013/12/26/%e0%b8%81%e0%b8%b2%e0%b8%a3%e0%b8%9a%e0%b8%a3%e0%b8%a3%e0%b8%a2%e0%b8%b2%e0%b8%a2-%e0%b9%80%e0%b8%a3%e0%b8%b7%e0%b9%88%e0%b8%ad%e0%b8%87-the-public-face/
การบรรยาย เรื่อง the public face