Search History Select to load keywords (dateIssued equals "[1957 TO 1999]") AND (subject equals "Copolymers") AND (dateIssued equals "1999") AND (subject equals "มาลีอิกแอนไฮไดรด์") AND (subject equals "โพลิเมอร์ผสม") (author equals "ผุสตี ปริยานนท์") AND (author equals "วิเชฏฐ์ คนซื่อ") AND (subject equals "กบทูด") AND (author equals "นพดล กิตนะ") AND (subject equals "กบ -- การสืบพันธุ์")
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