Tan Ngah Sie, S. C. Yong Zhe, L. . Wai Ken, W. . Kai Hong, and C. . Khoon Keat. “Thermoelectric Energy Harvesting For Powering LED Using Tealight”. Multidisciplinary Applied Research and Innovation, vol. 2, no. 3, Dec. 2021, pp. 224-8, https://publisher.uthm.edu.my/periodicals/index.php/mari/article/view/5106.