Bettina Kampman, etc (xaneiro de 2010). "Green Power for Electric Cars"(PDF). p. 86. Arquivado dende o orixinal(PDF) o 15 de febreiro de 2010. Consultado o 29 de xuño de 2020. páxina 21 (contando a portada)
International Energy Agency (IEA), Clean Energy Ministerial, and Electric Vehicles Initiative (EVI) (xuño de 2020). "Global EV Outlook 2020: Enterign the decade of electric drive?". IEA Publications. Consultado o 2020-06-15.See Statistical annex, pp. 247–252 (See Tables A.1 and A.12). The global stock of plug-in electric passenger vehicles totaled 7.2 million cars at the end of 2019, of which, 47% were on the road in China. The stock of plug-in cars consist of 4.8 million battery electric cars (66.6%) and 2.4 million plug-in hybrids (33.3%). In addition, the stock of light commercial plug-in electric vehicles in use totaled 378 thousand units in 2019, and about half a million electric buses were in circulation, most of which are in China.
Bettina Kampman, etc (xaneiro de 2010). "Green Power for Electric Cars"(PDF). p. 86. Arquivado dende o orixinal(PDF) o 15 de febreiro de 2010. Consultado o 29 de xuño de 2020. páxina 21 (contando a portada)
