Search History Select to load keywords (dateIssued equals "[1957 TO 1999]") AND (subject equals "Polyethylene") AND (subject equals "โพลิเมอร์ผสม") AND (author equals "Parichart Limsila") (author equals "ผุสตี ปริยานนท์") AND (author equals "ยุพาพร วิสูตร") AND (author equals "ขัตพันธุ์ จันทะวงษ์ศรี") AND (subject equals "กบทูด") AND (author equals "ปิ่นมนัส นนท์นา")
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