Cang hai sang tian hua bei jing/ ang hai sang tian hua jia ting 地理之谜;ang hai sang tian hua jia ting 古代典章制度浅说;ang hai sang tian hua jia ting Shang hai zi ran huan jing/ Lao pai hai shang ba zhu de bei ying/ Zhang hen shui shuo bei jing/ 振兴之路：中国历代改革史话;ang hai sang tian hua jia ting Xin jiang wen hua xie ying/ Er yang hua tai guang cui hua huo xing/