Tiptida Skulthongaram และ Worawet Suwanrada. (2014) KEY FACTORS OF KOREAN STUDENT STUDYING ABROAD, 1990 - 2012. Chulalongkorn University:ม.ป.ท.Tiptida Skulthongaram และ Worawet Suwanrada. 2014. KEY FACTORS OF KOREAN STUDENT STUDYING ABROAD, 1990 - 2012. ม.ป.ท.:Chulalongkorn University;Tiptida Skulthongaram และ Worawet Suwanrada. KEY FACTORS OF KOREAN STUDENT STUDYING ABROAD, 1990 - 2012. ม.ป.ท.:Chulalongkorn University, 2014. Print.