Allwar, A. et al. 2018. Synthesis and Characterization of Activated Carbon from Hydrothermally Banana Empty Fruit Bunch for Adsorption of Pb(II) and Cr(VI) in Aqueous Solution. Asian Journal of Chemistry. 30, 7 (May 2018), 1639–1644. DOI:https://doi.org/10.14233/ajchem.2018.21295.