Mohadi, Risfidian, Neza Rahayu Palapa, Tarmizi Taher, Patimah Mega Syah Bahar Nur Siregar, Normah, Novie Juleanti, Alfan Wijaya, and Aldes Lesbani. 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.