从《柳毅传》到《柳毅传书》人物形象的嬗变——以主人公柳毅和龙女为例
종《류의전》도《류의전서》인물형상적선변——이주인공류의화룡녀위례
Evolution of Image from Biography of Liu Yi to Tale of Liu Yi A Case Study of the Hero Liu Yi and Dragon Maid ——Take Liu Yi and the dragon king's daughter as well