1.Frankfurt School-UNEP Centre,BNEF:“Global Trends in Renewable Energy Investment 2018”,2018.
2.Institute for Energy Economics and Financial Analysis(IEEFA):“China 2017 Review:World’s Second-Biggest Economy Continues to Drive Global Trends in Energy Investment”,2018,http://ieefa.org/wp-content/uploads/2018/01/China-Review-2017.pdf.
3.International Renewable Energy Agency(IRENA):“Renewable Energy and Jobs-Annual Review”,2018.
4.Renewable Energy Policy Network for the 21st Century(REN21):“Renewables 2018:Global Status Report”.Paris:REN21 Secretariat,2018.