A.P. Henagamage, K. T. Tharshigah, and H.M.J.C. Pitawala. “The Effect of Particle Sizes of Clearing Nut Seed Powder and Rice Husk Powder for Removal Efficiency of Cd2+ from Synthetic Wastewater”. Sri Lankan Journal of Applied Sciences, vol. 1, no. 02, Feb. 2023, pp. 34-42, https://sljoas.uwu.ac.lk/index.php/sljoas/article/view/53.