1. Renewables 2016 Global Status Report, Renewable Energy Policy Network for the 21st Century (REN21), REN21 Secretariat, Paris, 2016. 〈http://www.ren21.net〉.
2. PVPS Report: A Snapshot of Global PV 1992–2014, International Energy Agency (IEA), Report IEA PVPS T1-26, 2015. 〈http://www.iea-pvps.org〉.
3. Handbook of Energy Efficiency and Renewable Energy;Kreith,2007
4. Saving for a rainy day;Cartlidge;Science,2011
5. Performance enhancement of solar collectors-a review;Mohd;Renew. Sustain. Energy Rev.,2015