Study on the book copyright in ancient China 并列题名：Study on the book copyright in ancient China study on the system of concealment in ancient China History of copyright in ancient China 并列题名：History of copyright in ancient China Study on the prices of paintings in ancient China Study on the aesthetics of Ganwu in ancient China Study on the urban governance system in ancient China 并列题名：Study on the prices of paintings in ancient China 虚拟的权利：中国古代容隐制度研究：study on the system of concealment in ancient China