Search History Select to load keywords (dateIssued equals "[2500 TO 2565]") AND (author equals "วรณพ วิยกาญจน์") AND (subject equals "ความหลากหลายทางชีวภาพ") AND (author equals "สุชนา ชวนิชย์") (dateIssued equals "[1968 TO 1999]") AND (dateIssued equals "[1980 TO 1989]") AND (subject equals "Absorption") AND (subject equals "Copolymers")
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