Search History Select to load keywords (type equals "Thesis") AND (subject equals "ผลสัมฤทธิ์ทางการเรียน") AND (subject equals "นักเรียนมัธยมศึกษา") AND (subject equals "วิทยาศาสตร์สิ่งแวดล้อม") AND (subject equals "High school students") AND (subject equals "Web-based instruction") AND (subject equals "Academic achievement")
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