Ming Qing Han yu ci hui de nan bei cha yi yan jiu = A study on the differences between the north and the south of Chinese vocabulary in Ming and Qing dynasties
Yuan Ming Qing yu yan xian xiang kao cha : Yi "Lao qi da" si zhong ban ben wei yan jiu dui xiang = Yuan Ming Qing yuyan xianxiang kaocha : yi Laoqida sizhong banben wei yanjiu duixiang