1. R.B. Han and J. Ke, Science and Civilization in China: Mining and Metallurgy (Beijing: Science Press, 2007), pp. 390–445. in Chinese.
2. J.M. Hua, Metallurgy in Ancient China (Zhengzhou: Elephant Press, 1999), pp. 294–389. in Chinese with English title and abstract.
3. P.Q. An, eds., Historical Records (Shanghai: Publishing House of Chinese Dictionary, 2004), pp. 1539–1550. in Chinese.
4. P.Q. An, eds., The History of the Former Han Dynasty (Shanghai: Publishing House of Chinese Dictionary, 2004), pp. 485–518. in Chinese.
5. H. Chai, eds., Discussion on salt and iron (Haerbin: Heilongjiang Publishing Group, 2004), pp. 29–34. in Chinese.