Robert Michael Tampus; Janine R. Lardizabal; Dennise Linoel M. Acena; Michaela Angelica M. Uy; Kenneth Vance R. Arcenal. PROPORTION AND PROPERTY SPECIFICATIONS AND STRENGTH BEHAVIOR OF MORTAR USING WOOD ASH AS PARTIAL REPLACEMENT OF LIME. INTERNATIONAL JOURNAL OF GEOMATE 2020, 18, 49-55.