Search History Select to load keywords (dateIssued equals "[2500 TO 2563]") AND (author equals "บุญเทียม เทพพิทักษ์ศักดิ์") (type equals "Thesis") AND (subject equals "Computer Science") AND (dateIssued equals "[2015 TO 2099]") AND (subject equals "Professional, scientific and technical activities")
Use filters to refine the search results.