Study of urban security in the Han dynasty 并列题名：Study of urban security in the Han dynasty Study of local security management of the Han dynasty Study of festivals in the Tang dynasty Study of studies on Mencius in the Qing dynasty 并列题名：Study of local security management of the Han dynasty a study of confucianism in the early han dynasty A Study of the Hui Nationality in the Yuan Dynasty Study on the residence of the court in the Han dynasty Study on the social security culture of the Song dynasty