Title: "Tian sheng lü ling" dian dang jie dai men zheng li yan jiu
Subjects: Loans, Law and legislation, History, Personal Loans, Law, Tangut (Chinese people), Legal status, laws, Xi Xia Dynasty (China), Xi Xia Tiansheng lü ling, Tiansheng lü ling
Places: China, Gansu Sheng, Northwest China
Time periods: To 1500, Xi Xia dynasty, 1038-1227