Study on local rule of law in Sung Dynasty 并列题名：Study on local rule of law in Sung Dynasty Study on local civil trial in Song dynasty Study on local chronicles of Song Dynasty 并列题名：Study on local civil trial in Song dynasty Study on legal system of commercial tax in Ming dynasty 并列题名：Study on legal system of commercial tax in Ming dynasty Study on the poetry circle of Huizhou in the Song dynasty 并列题名：Study on local chronicles of Song Dynasty Study on the state and local society in song dynasty