Search History Select to load keywords (author equals "ผุสตี ปริยานนท์") AND (author equals "วิเชฏฐ์ คนซื่อ") AND (author equals "พชร สิทธิชีวภาค") AND (author equals "ธงชัย ฐิติภูรี") AND (author equals "นพดล กิตนะ") (dateIssued equals "[1957 TO 1999]") AND (subject equals "Polyvinyl chloride") AND (subject equals "Palm oil") AND (dateIssued equals "1995")
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