S. Sarati, U. Intatha, S. Duangphet, N. Soykeabkaew, and N. Tawichai, “High-Capacity Removal of Lead and Cadmium Using FGD Gypsum-Derived Hydroxyapatite: Kinetic and Equilibrium Adsorption Studies”, Trends Sci, vol. 23, no. 10, p. 13418, Apr. 2026.