1. https://www.eia.gov/international/data/world/electricity/electricity-generation/ (2021). Web Document
2. WMO Statement on the State of the Climate 2020: Impacting Indicators 2021; WMO: Geneva, Switzerland, 2020; 51p. Book
3. Wuebbles, D.J., Fahey, D.W., Hibbard, K.A., Dokken, D.J., Stewart, B.C., Maycock, T.K. (Eds.), (2017) 'USGCRP, 2017: Climate Science Special Report: Fourth National Climate Assessment,' vol. I,' U.S. Global Change Research Program: Washington, DC, USA, 470p. Book
4. H.G. Teo, P.S. Lee, M.N.A. Hawlader, (2012) 'An active cooling system for photovoltaic modules,' Applied Energy, vol. 90, Issue 1, pp. 309-315. Journal Paper
5. Anusha K., S. Chandra, M. Reddy, (2013) 'Design and Development of Real Time Clock Based Efficient Solar Tracking System,' International Journal of Engineering Research and Applications (IJERA), vol. 3 (3), pp. 1219-1223. Journal Paper