Adnan, Nadiatul Asma, et al. “Effect of Tea Waste Extract Volume on Synthesis of TiO2 for Photodegradation of 2,4-Dichlorophenol ”. Malaysian Journal of Catalysis, vol. 8, no. 1, Oct. 2024, pp. 9-13, https://mjcat.utm.my/index.php/MalJCat/article/view/180.