Juleanti, N., Palapa, N. R., Taher, T., Hidayati, N., Putri, B. I. . and Lesbani, A. (2021) “The Capability of Biochar-Based CaAl and MgAl Composite Materials as Adsorbent for Removal Cr(VI) in Aqueous Solution”, Science and Technology Indonesia, 6(3), pp. 196–203. doi: 10.26554/sti.2021.6.3.196-203.