1. The regulation of China's township and village coal mines: a study of complexity and ineffectiveness;Andrews-Speed;Journal of Cleaner Production,2003
2. Asia Pulse, 1998. Coal Market in China Set to Remain Sluggish in 1998. Asia Pulse, 1 September, 1998.
3. BP, 2010. BP Statistical review of world energy.
4. Statistic Review of World Energy;Browne,2000
5. China Coal Industry Yearbook Editorial Board, 1982–2009. China Coal Industry Yearbook. China Coal Industry Publishing House, Beijing.