Hafiz, M. N. ., M. . Othman, N. A. . Mat Razali, Z. Suif, and N. . Ahmad. “LABORATORY INVESTIGATION ON WATER QUALITY OF SPRING WATER FOR SMALL COMMUNITY AND WATER SECURITY”. GEOMATE Journal, vol. 24, no. 105, Mar. 2023, pp. 77-84, https://geomatejournal.com/geomate/article/view/3871.