“SOLIDIFICATION/STABILIZATION OF NONVALUABLE RESIDUE FROM WASTE PRINTED CIRCUIT BOARD ASSEMBLY”, INTERNATIONAL JOURNAL OF GEOMATE, vol. 11, no. 24, pp. 2307–2313, Apr. 2017, Accessed: Aug. 20, 2026. [Online]. Available: https://geomatejournal.com/geomate/article/view/2069