Search History Select to load keywords (subject equals "Catalysts") AND (dateIssued equals "[2000 TO 2099]") AND (dateIssued equals "[2000 TO 2009]") AND (subject equals "Silica") AND (subject equals "Gold") (author equals "อาจอง ประทัตสุนทรสาร") AND (author equals "ชัชวาล ใจซื่อกุล") AND (dateIssued equals "2550") AND (author equals "ดวงแข สิทธิเจริญชัย")
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