Paramita, S. A., I. Nurhasanah, and A. Khumaeni. “Structural and Optical Properties of Bismuth-Doped Cerium Oxide Prepared at a Low Temperature”. Jurnal Penelitian Fisika Dan Aplikasinya (JPFA), vol. 13, no. 1, June 2023, pp. 16-24, doi:10.26740/jpfa.v13n1.p16-24.