Juleanti N, Palapa NR, Taher T, Hidayati N, Putri BI, Lesbani A. The Capability of Biochar-Based CaAl and MgAl Composite Materials as Adsorbent for Removal Cr(VI) in Aqueous Solution. sci. technol. indones. [Internet]. 2021 Jul. 22 [cited 2026 Apr. 19];6(3):196-203. Available from: https://www.sciencetechindonesia.com/index.php/jsti/article/view/331