1. The material basis of the global economy: worldwide patterns of natural resource extraction and their implications for sustainable resource use policies;Behrens;Ecol Econ,2007
2. British Petroleum (BP). BP statistical review of world energy; June 2014.
3. National Bureau of Statistics of the People׳s Republic of China. China׳s statistic yearbook 2012, 〈http://www.stats.gov.cn/tjsj/ndsj/information/njml.html〉; 1997 [accessed 7.05.14].
4. National Bureau of Statistics of the People׳s Republic of China. China׳s statistic yearbook 2008, 〈http://www.stats.gov.cn/tjsj/ndsj/2008/indexch.htm〉; 2009 [accessed 7.05.14].
5. National Bureau of Statistics of the People׳s Republic of China. China׳s statistic yearbook 2013, 〈http://www.stats.gov.cn/tjsj/ndsj/2013/indexch.htm〉; 2014 [accessed 7.05.14].