Search History Select to load keywords (author equals "นพดล กิตนะ") AND (author equals "นิพาดา เรือนแก้ว") AND (author equals "จิรศักดิ์ สุจริต") (type equals "Thesis") AND (subject equals "ผลสัมฤทธิ์ทางการเรียน") AND (subject equals "Academic achievement") AND (subject equals "Mathematics -- Study and teaching (Secondary)")
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