BILLAH, Mu’tassim; ROHMAH, Disty Nur; SHOLAHUDDIN, Faisal Amri; PANJAITAN, Renova; WAHYUSI, Kindriari Nurma; DEWATI, Retno. Reducing Zinc and Chromium in Wastewater Treatment Biosolid Through Sulfuric Acid Extraction. Nusantara Science and Technology Proceedings, Malang, Indonesia, p. 367–369, 2022. DOI: 10.11594/nstp.2022.2755. Disponível em: https://nstproceeding.com/index.php/nuscientech/article/view/807. Acesso em: 29 jun. 2025.