Search History Select to load keywords (subject equals "ผลสัมฤทธิ์ทางการเรียน") AND (subject equals "คณิตศาสตร์ -- การศึกษาและการสอน") AND (author equals "ดวงทิพย์ เพ็ชรนิล") AND (subject equals "การแก้ปัญหา") AND (subject equals "Academic achievement") (dateIssued equals "[1957 TO 1999]") AND (subject equals "Rats") AND (subject equals "Cytochrome P-450") AND (dateIssued equals "1999")
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