แบบฟอร์มลงทะเบียนร่วมงาน BarCamp ChiangRai 2017

18 กุมภาพันธ์ 2560 ณ มหาวิทยาลัยแม่ฟ้าหลวง
18 February 2017 @ Mae Fah Luang University

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