Search History Select to load keywords (type equals "Thesis") AND (dateIssued equals "[2000 TO 2099]") AND (subject equals "Catalysts") AND (subject equals "เอทิลีน") AND (dateIssued equals "2013") AND (subject equals "Ethylene") (author equals "สมภพ รุ่งสุภา") AND (author equals "กัลยา วัฒยากร") AND (author equals "ณิฎฐารัตน์ ปภาวสิทธิ์") AND (subject equals "น้ำจืด")
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