Search History Select to load keywords (dateIssued equals "[1957 TO 1999]") AND (subject equals "Polyethylene") AND (dateIssued equals "1999") AND (subject equals "Maleic anhydride") AND (subject equals "ยาง") (author equals "ผุสตี ปริยานนท์") AND (subject equals "กบทูด") AND (author equals "ยุพาพร วิสูตร") AND (author equals "สุวิสาข์ ชอบจิตต์") AND (subject equals "Frogs -- Reproduction")
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