Search History Select to load keywords (dateIssued equals "[1957 TO 1999]") AND (subject equals "Copolymers") AND (dateIssued equals "1999") AND (subject equals "Polyethylene") (subject equals "การสื่อสาร") AND (subject equals "ความพอใจ") AND (subject equals "การบริหารคุณภาพโดยรวม") AND (author equals "ภาวนา ทองศรี")
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