Nurlaela, A., E. Yuniarti, and S. A. Saptari. “SYNTHESIZE OF TiO2 NANOPARTICLES BY PLANETARY BALL MILL FOR DYE-SENSITIZED SOLAR CELLS (DSSC) PHOTOELECTRODE APPLICATION”. Spektra: Jurnal Fisika Dan Aplikasinya, Vol. 8, no. 2, Aug. 2023, pp. 83 -92, doi:10.21009/SPEKTRA.082.02.