Ishak, Nurul Najihah, et al. “Performance Evaluation of Ag Doped TiO2 Nanoflowers in Dye-Sensitized Solar Cell”. ELEKTRIKA- Journal of Electrical Engineering, vol. 20, no. 2-2, Sept. 2021, pp. 41-48, https://elektrika.utm.my/index.php/ELEKTRIKA_Journal/article/view/306.