Chaiyasith, S. and Septhum, C. (2015) “Potential of Treated Fly Ash for Removal of Lead from Wastewater”, Science & Technology Asia, 9(3), pp. 1–6. available at: https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/41632 (accessed: 28 August 2026).