Search History Select to load keywords (dateIssued equals "[2500 TO 2565]") AND (author equals "วรณพ วิยกาญจน์") AND (subject equals "ความหลากหลายทางชีวภาพ") AND (dateIssued equals "2556") (subject equals "Materials Science") AND (subject equals "Agricultural and Biological Sciences") AND (subject equals "Environmental Science") AND (subject equals "กรดโพลิแล็กติก")
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