Search History Select to load keywords (dateIssued equals "[2500 TO 2566]") AND (dateIssued equals "[2520 TO 2529]") AND (subject equals "การสอน") AND (author equals "นันทนา เทพบริรักษ์") (subject equals "Polyethylene") AND (subject equals "Maleic anhydride") AND (subject equals "โพลิเอทิลีน") AND (subject equals "โพลิเมอร์ผสม") AND (subject equals "Rubber")
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