IRAWAN, Diki Surya; ALHAM, Muhammad; SARI, Deffi Ayu Puspito; FADIILAH, Dessy. Optimizing Fly Ash and Cement Ratios for Immobilizing Lead and Arsenic in Liquid Hazardous Waste. Engineering, Technology & Applied Science Research, Greece, v. 15, n. 1, p. 20500–20507, 2025. DOI: 10.48084/etasr.9507. Disponível em: https://www.etasr.com/index.php/ETASR/article/view/9507. Acesso em: 14 jun. 2026.