Siew Yun, G., and K. Swee Leong. “Optimization of Electrical Energy Harvesting from Focused Infrared Light Using Thermoelectric Module With Uniform Heat Distribution”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), vol. 9, no. 3, Sept. 2017, pp. 105-10, https://jtec.utem.edu.my/jtec/article/view/1988.