Search History Select to load keywords (author equals "ผุสตี ปริยานนท์") AND (author equals "รชตะ มณีอินทร์") AND (author equals "ธงชัย ฐิติภูรี") AND (author equals "พชร สิทธิชีวภาค") AND (author equals "จิรารัช กิตนะ") (dateIssued equals "[1957 TO 1999]") AND (subject equals "Copolymers") AND (dateIssued equals "1999") AND (subject equals "ยาง") AND (subject equals "Graft copolymers")
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