Chu, Baotai.

• Guo ji tou zi he tou zi fa wen da
• Meiguo zen yang fa zhan xin chan pin
• Wai shang zai Zhongguo tou zi di fa lü wen ti
• Zhong wai he zi jing ying qi ye fa ji qi shi shi jing yan qian tan
• Zhong wai he zi jing ying qi ye fa shi shi jing yan wen da
• Zhongguo tou zi wen da