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2. M.AbdulazeezandI.Iskender Simulation and experimental study of shading effect on series and parallel connected photovoltaic PV modules in2011 7th International Conference on Electrical and Electronics Engineering (ELECO) pp.28–32 2011.
3. Academia Heliocentris Renewable energy trainer December 15 2019 available athttp://heliocentrisacademia.com/portfolio-item/renewable-energytrainer/
4. AKT‐20‐M 20 Watt Monocrystalline Solar Panel December 15 2019 available athttp://www.alternative-energytutorials.com/images/reviews/pdf/AKT-20-M.pdf.
5. A photovoltaic system experiment in a laboratory environment