G.M.P. Kumara and Ken Kawamoto, “APPLICABILITY OF CRUSHED CLAY BRICK AND MUNICIPAL SOLID WASTE SLAG AS LOW-COST ADSORBENTS TO REFINE HIGH CONCENTRATE Cd (II) AND Pb (II) CONTAMINATED WASTEWATER”, INTERNATIONAL JOURNAL OF GEOMATE, vol. 17, no. 63, pp. 133–142, Apr. 2019.