Mohadi, R., Palapa, N. R., Taher, T., Siregar, P. M. S. B. N., Normah, Juleanti, N., Wijaya, A., & Lesbani, A. (2021). Removal of Cr(VI) from aqueous solution by biochar derived from rice husk. Communications in Science and Technology, 6(1), 11-17. https://doi.org/10.21924/cst.6.1.2021.293