Afifah, D., K. Riyani, T. Setyaningtiyas, Y. Hasanah, and A. Mufarij. “The Treatment of Phenol in Batik Wastewater by TiO2 -Copper Oxide (CuO And Cu2O) Photocatalyst”. Jurnal Kartika Kimia, Vol. 5, no. 1, May 2022, pp. 44-50, doi:10.26874/jkk.v5i1.110.