Search History Select to load keywords (type equals "Thesis") AND (author equals "Sakboworn Tumpeesuwan") AND (subject equals "ซากดึกดำบรรพ์ -- ไทย -- ขอนแก่น") AND (subject equals "อุทยานแห่งชาติภูเวียง (ขอนแก่น)") AND (subject equals "Mollusks")
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