O. K.I., A. A.O., G. C.E., A. H., and Y. M.T., “Determination of the Band Gap and Intensity of Palladium/Silver Doped TiO2 Nano Particles Using Diffuse Reflectance and Photoluminescence Spectra”, jst, vol. 10, no. 3, Dec. 2018, Accessed: Jul. 23, 2024. [Online]. Available: https://penerbit.uthm.edu.my/ojs/index.php/JST/article/view/2868