Search History Select to load keywords (type equals "Thesis") AND (dateIssued equals "[1957 TO 1999]") AND (dateIssued equals "[1990 TO 1999]") AND (dateIssued equals "1990") AND (subject equals "พฤกษเคมี") AND (subject equals "อัลคาลอยด์") (type equals "Thesis") AND (subject equals "ผลสัมฤทธิ์ทางการเรียน") AND (subject equals "นักเรียนมัธยมศึกษา") AND (subject equals "วิทยาศาสตร์สิ่งแวดล้อม") AND (subject equals "High school students") AND (author equals "ราตรี อิ้วสวัสดิ์")
Use filters to refine the search results.