Study on the dictionaries compiled by foreigners during the late Qing dynasty Study on the history of foreign trade during the Qing dynasty a study on the Nanchang murders in the late Qing dynasty a study on the legal system of foreign trade during the ming and qing dynasties Study on the calligraphy theories and the calligraphers in the late Qing Dynasty Study on the legalization of ethnic policies in the Qing dynasty A study of the land system in Jiangnan during the Ming dynasty Study on spread of opium in the late qing dynasty Study on the modernization of Chinese criminal law and the modification of laws in the late Qing dynasty the study on the historical compiling for the period of Jianwen during the Ming dynasty