1. Rabl A.,Active solar collectors and their applications, New York: Oxford University Press, (1985).
2. Karanth K. V., Manjunath M., and Sharma N. Y., in Proceedings of the World Congress on Engineering, pp. 6–8,Vol III, (2011).
3. Khalid A. and Junaidi H.,45th IEP Convention12, (2012).
4. Shashishekar K. S., Basavanna S., International journal of mechanical engineering and robotic ResearchVol.2, (2013).
5. Venu A. and Arun P., International journal of renewable energy researchVol. 3, (2013).