Hamzah, A., Priyadarshini, R. and Astuti, A. (2022) “The potential use of humic acid-coated biochar for reducing Pb and Cu in the soil to improve plant growth”, Journal of Degraded and Mining Lands Management. Malang, Indonesia, 10(1), pp. 4001–4009. doi: 10.15243/jdmlm.2022.101.4001.