Search History Select to load keywords (subject equals "ผลสัมฤทธิ์ทางการเรียน") AND (subject equals "Academic achievement") AND (subject equals "Mathematics -- Study and teaching (Secondary)") AND (subject equals "Mathematical ability") AND (author equals "โสมรัศมิ์ ดาหลาย") AND (subject equals "Concepts") (author equals "วิเชฏฐ์ คนซื่อ") AND (author equals "สุธิโรจน์ มีสวัสดิ์") AND (author equals "ขัตพันธุ์ จันทะวงษ์ศรี") AND (author equals "จิรารัช กิตนะ") AND (author equals "พชร สิทธิชีวภาค") AND (subject equals "กบ")
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