Search History Select to load keywords (subject equals "ผลสัมฤทธิ์ทางการเรียน") AND (subject equals "การแก้ปัญหา") AND (subject equals "ระบบการเรียนการสอน") AND (subject equals "Academic achievement") AND (author equals "ประยูร บุญใช้") (dateIssued equals "[2500 TO 2566]") AND (subject equals "พยาบาล") AND (dateIssued equals "[2520 TO 2529]") AND (dateIssued equals "2527") AND (subject equals "Hospitals -- Thailand, Northern")
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