Siregar, P. M. S. B. N., Palapa, N. R., Wijaya, A., Fitri, E. S., & Lesbani, A. (2021). Structural Stability of Ni/Al Layered Double Hydroxide Supported on Graphite and Biochar Toward Adsorption of Congo Red. Science and Technology Indonesia, 6(2), 85–95. https://doi.org/10.26554/sti.2021.6.2.85-95