Ningyuan Liu

• Zhongguo pai mai fa lü zhi du yan jiu
• Fan long duan fa yu wai guan xia chong tu ji qi guo ji xie tiao ji zhi yan jiu
• Guo ji fan long duan fa
• Guo ji shang shi zhong cai zhuan ti yan jiu
• Pai mai fa yuan li yu shi wu
• Zhong wai fan long duan fa shi shi ti zhi yan jiu
• Zhongguo nü xing shi lei bian