1. U.S. Energy Information Administration (EIA). - Data. 〈https://www.eia.gov/totalenergy/data/monthly/previous.php#2017〉 [Accessed 10 August 2017]; 2017.
2. BP. BP Energy Outlook 2017 2017. 〈https://www.bp.com/content/dam/bp/pdf/energy-economics/energy-outlook-2017/bp-energy-outlook-2017.pdf〉 [Accessed 6 August 2017].
3. Biobutanol: an attractive biofuel;Dürre;Biotechnol J,2007
4. A short review on biobutanol, a second generation biofuel production from lignocellulosic biomass;Mahapatra;J Clean Energy Technol,2017
5. n-Butanol derived from biochemical and chemical routes: a review;Ndaba;Biotechnol Rep,2015