Badaruddin, M., N. Ahmad, E. Salasia Fitri, A. Lesbani, and R. Mohadi. “Hydrochar and Humic Acid As Template of ZnAl Layered Double Hydroxide for Adsorption of Phenol”. Science and Technology Indonesia, vol. 7, no. 4, Oct. 2022, pp. 492-9, doi:10.26554/sti.2022.7.4.492-499.