Search History Select to load keywords (author equals "ผุสตี ปริยานนท์") AND (author equals "ธงชัย ฐิติภูรี") AND (author equals "นพดล กิตนะ") AND (subject equals "กบทูด") AND (author equals "สุวิสาข์ ชอบจิตต์") (dateIssued equals "[1957 TO 1999]") AND (subject equals "Polyethylene") AND (subject equals "โพลิเอทิลีน") AND (subject equals "ยาง") AND (subject equals "Maleic anhydride")
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