A study of the land system in Jiangnan during the Ming dynasty a study of the Western Regions during the Tang Dynasty a study on the legal system of foreign trade during the ming and qing dynasties a study on the Jia rituals during the Song Dynasty Study on the post system in southwest China of the Ming dynasty Study on the history of foreign trade during the Qing dynasty city planning in Taiwan during the Qing dynasty Study of the Hexi Corridor and the Silk Road during the Ming dynasty Study on the land tax system and related problems in Song dynasty Study of the imperial examination system in the Tang dynasty