Jonathan R. Dungca, and Joenel G. Galupino. “MODELLING OF PERMEABILITY CHARACTERISTICS OF SOILFLY ASH-BENTONITE CUT-OFF WALL USING RESPONSE SURFACE METHOD”. GEOMATE Journal 10, no. 22 (February 10, 2017): 2018–2024. Accessed April 25, 2024. https://geomatejournal.com/geomate/article/view/1991.