1. Criteria for accrediting engineering programs;ABET Engineering Accreditation Commission,2009
2. Sustainable engineering: a model for engineering education in the twenty-first century;Allen;J Clean Technol Environ Policy,2006
3. Sustainable engineering education in the United States;Allenby;Sustain J,2009
4. AIChE credential for sustainability professionals;American Institute of Chemical Engineers (AIChE),2015
5. Statistical review of world energy 2013;British Petroleum (BP),2013