Sajid Khan Afridi และผู้แต่งคนอื่นๆ. (2015) Effect of Mixing Proportion on Compressive Strength of Fly-Ash Based Geopolymer Paste and Mortar Using Taguchi?s Method. ISEC Press:ม.ป.ท.Sajid Khan Afridi และผู้แต่งคนอื่นๆ. 2015. Effect of Mixing Proportion on Compressive Strength of Fly-Ash Based Geopolymer Paste and Mortar Using Taguchi?s Method. ม.ป.ท.:ISEC Press;Sajid Khan Afridi และผู้แต่งคนอื่นๆ. Effect of Mixing Proportion on Compressive Strength of Fly-Ash Based Geopolymer Paste and Mortar Using Taguchi?s Method. ม.ป.ท.:ISEC Press, 2015. Print.