Chang, C.-Y. ., Y.-H. . Hsieh, Y.-Y. . Li, C.-T. . Wu, K.-Y. . Cheng, and C.-Y. . Chang. “Ultrasonic Effect on the Photodegradation of 2,4-Dichlorophenol Wastewater”. The International Journal of Biotechnology, vol. 5, no. 2, Aug. 2016, pp. 26-34, doi:10.18488/journal.57/2016.5.2/57.2.26.34.