Study on Duan Li in Song and Yuan dynasties 并列题名:Study on Duan Li in Song and Yuan dynasties Study of land taxes in Qin and Han dynasties the study of tsa-tzu in Ming and Qing dynasties Study of appellation in the Qin and Han dynasties Study on dramas in the later Ming and early Qing dynasties study on Buddhism art of the Han and Tang Dynasties study on buddhism art of the Han and Tang Dynasties Chan and literati painting in Song and Yuan dynasties Study of Liu Zongyuan's criticism in Ming and Qing dynasties