Search History Select to load keywords (type equals "Thesis") AND (subject equals "ผลสัมฤทธิ์ทางการเรียน") AND (subject equals "Academic achievement") AND (subject equals "Mathematics -- Study and teaching (Secondary)") AND (author equals "วราภรณ์ วิหคโต") AND (subject equals "การวิเคราะห์ตัวแปรพหุ")
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