K, C., & Narsito, I. K. (2015). Chemically Synthesized Mesoporous Nitrogen-Doped TiO2 and its Application to High Efficiency Dye- Sensitized Solar Cells. Science & Technology Asia, 15(4), 1–10. Retrieved from https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/41260