Essence of study of Beijing during the republic of China Intellectual history of painting during the Republic of China Study of crime issues in Beijing during the Republic of China Study of maidservants in Beijing during the Republic of China 并列题名：Study of crime issues in Beijing during the Republic of China 并列题名：Intellectual history of painting during the Republic of China Clerk trade union during the republic of China European and American people and Beijing during the republic of China Peking opera memory of the literati in the republic of China Theory and practice of legal interpretation during the Republic of China