Study of policy and practice for selecting officials in the Tang Dynasty 并列题名:Study of policy and practice for selecting officials in the Tang Dynasty Study on exciled and demoted officials in Tang dynasty Study on the legalization of ethnic policies in the Qing dynasty Study of criminal litigation practices in the Tang Dynasty Study of litigation practices in the Song Dynasty Study on the assessment of the civil officials in Qing dynasty a study on proclamation and social control in the Song dynasty Study of studies on Mencius in the Qing dynasty Study of the biographies of empresses and concubines in the Tang dynasty