Joseph, C. G., Y. H. T. Yao, dan V. Khrisnan. Ultrasonic Assisted Photolytic Degradation of Reactive Black 5 (RB5) Simulated Wastewater. Vol. 17, no. 2, Desember 2017, hlm. 37-50, https://jurnal.ugm.ac.id/v3/AJChE/article/view/8980.