Search History Select to load keywords (type equals "Thesis") AND (dateIssued equals "[1957 TO 1999]") AND (subject equals "โพลิเมอไรเซชัน") AND (subject equals "Catalysts") AND (subject equals "Hexane") AND (subject equals "โพลิเอทิลีน") AND (subject equals "Polyethylene") AND (subject equals "Polymerization") AND (author equals "Chongkiat Visetjung") AND (subject equals "ตัวเร่งปฏิกิริยา")
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