Safni, Safni -, et al. “Degradation of Phenol Using Sonolysis and Photolysis by TiO2 RHAC Catalyst and Analysis With Spectrophotometer UV-VIS and HPLC”. Al Kimiya: Jurnal Ilmu Kimia Dan Terapan, vol. 10, no. 1, June 2023, pp. 50-56, doi:10.15575/ak.v10i1.24775.