Search History Select to load keywords (type equals "Senior Project") AND (dateIssued equals "[2007 TO 2099]") AND (subject equals "ธรณีเคมี") AND (subject equals "ธรณีเคมี -- ศรีลังกา") AND (subject equals "Corundum -- Sri Lanka") AND (subject equals "Geochemistry") (type equals "Thesis") AND (subject equals "ผลสัมฤทธิ์ทางการเรียน") AND (subject equals "นักเรียนมัธยมศึกษา") AND (subject equals "วิทยาศาสตร์สิ่งแวดล้อม") AND (subject equals "High school students") AND (subject equals "ทัศนคติเชิงวิทยาศาสตร์") (type equals "Thesis") AND (dateIssued equals "[1957 TO 1999]") AND (dateIssued equals "[1990 TO 1999]") AND (subject equals "โพลิเมอร์")
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