Search History Select to load keywords (subject equals "ผลสัมฤทธิ์ทางการเรียน") AND (subject equals "ความคิดและการคิด") AND (author equals "ประยูร บุญใช้") AND (dateIssued equals "2544") AND (subject equals "Thought and thinking") AND (subject equals "Problem solving") AND (subject equals "ระบบการเรียนการสอน")
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