Kenneth Jae T. Elevado, Joenel G. Galupino, and Ronaldo S. Gallardo. “COMPRESSIVE STRENGTH MODELLING OF CONCRETE MIXED WITH FLY ASH AND WASTE CERAMICS USING K-NEAREST NEIGHBOR ALGORITHM”. GEOMATE Journal, vol. 15, no. 48, Apr. 2018, pp. 169-74, https://geomatejournal.com/geomate/article/view/910.