Ligong Zhai

• Zhongguo Changjiang jing ji dai =
• Zhongguo gong ye chan ye di fa zhan
• Zhongguo jiao tong yun shu yao lan
• '99 jin ri Zhongguo
• Mei tan gong ye qi ye lao dong gong zi guan li
• Shanxi zhong dian jian she xiang mu
• Zhongguo ji shu gai zao wen ti yan jiu
• 煤炭工业企业物资管理
• 能源经济与管理