Search History Select to load keywords (type equals "Thesis") AND (subject equals "ผลสัมฤทธิ์ทางการเรียน") AND (subject equals "นักเรียนมัธยมศึกษา") AND (subject equals "High school students") AND (author equals "ราตรี อิ้วสวัสดิ์") AND (subject equals "Academic achievement")
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