Search History Select to load keywords (author equals "ชัชวาล ใจซื่อกุล") AND (author equals "มาลินี ฉัตรมงคลกุล") AND (subject equals "ความหลากหลายทางชีวภาพ") AND (subject equals "Biodiversity") AND (author equals "นพดล กิตนะ") AND (subject equals "Biodiversity conservation") (type equals "Dissertation") AND (subject equals "ผู้สูงวัย") (type equals "Dissertation") AND (subject equals "Agricultural machinery technology")
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