Saptari, Sitti Ahmiatri, et al. “EXPERIMENTAL AND COMPUTATIONAL STUDY OF NITROGEN-DOPED TiO2 AS A PHOTOELECTRODE”. Spektra: Jurnal Fisika Dan Aplikasinya, vol. 8, no. 2, Aug. 2023, pp. 93-104, doi:10.21009/SPEKTRA.082.03.