Search History Select to load keywords (type equals "Thesis") AND (subject equals "Chemistry") AND (subject equals "Energy") AND (subject equals "Oil palm") AND (subject equals "ดีคาร์บอกซิเลชัน") (dateIssued equals "[1957 TO 1999]") AND (subject equals "Polyethylene") AND (dateIssued equals "1999") AND (subject equals "มาลีอิกแอนไฮไดรด์") AND (subject equals "โพลิเมอร์ผสม")
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