1. Bai jianhua (2005), Risks of China oil supply and prevention measures. Master thesis, Southeast Petroleum College.
2. Zhang hualin (2005). China oil safety assessment index system study, International oil economics, 44-48.
3. He Xianjie, Sheng Cangming (2005). Preliminary study of oil safety assessment. Beijing: Geography Press, 16-24.
4. Guo zhen (2008). Safety assessment systematic analysis of China oil. Master thesis, China Petroleum University .
5. Satty TL. (1980). The analytic hierarchy process. New York: Mc grw-Hill.