Search History Select to load keywords (type equals "Thesis") AND (dateIssued equals "[2500 TO 2566]") AND (dateIssued equals "[2550 TO 2559]") AND (subject equals "กิจกรรมการเรียนการสอน") AND (subject equals "Mathematics -- Study and teaching (Secondary)") AND (subject equals "การอ้างเหตุผล")
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