Utilization of Palm Oil Fuel Ash and Rice Husks in Unfired Bricks for Sustainable Construction Materials DevelopmentA.M Saleh, M.T Rahmat, F.N Mohd Yusoff and N.E EddirizalMATEC Web of Conferences, 15 (2014) 01032DOI: https://doi.org/10.1051/matecconf/20141501032