BHUJEL, A.; WAGLE, K.; REGMI, B.; SAPKOTA, B.; POUDEL, B. R.; GAUTAM, S. K. Utilization of Charred Water Hyacinth (Jalkumvi) as Biosorbent for Removal of Ca(II) Ion from Aqueous Solution. Journal of Nepal Chemical Society, [S. l.], v. 42, n. 1, p. 107–114, 2021. DOI: 10.3126/jncs.v42i1.35360. Disponível em: https://www.nepjol.info/index.php/JNCS/article/view/35360. Acesso em: 24 oct. 2021.