Kiatsuda Somna และ Chaiyos Chankaew. (2016) Effect of Low NaOH Concentration on Compressive Strength and Products of High Calcium Geopolymer. <i>Mahasarakham International Journal of Engineering Technology</i>, <i>2</i>(1), 11-15.Kiatsuda Somna และ Chaiyos Chankaew. "Effect of Low NaOH Concentration on Compressive Strength and Products of High Calcium Geopolymer". Mahasarakham International Journal of Engineering Technology 2 (2016):11-15.Kiatsuda Somna และ Chaiyos Chankaew. Effect of Low NaOH Concentration on Compressive Strength and Products of High Calcium Geopolymer. Faculty of Engineering, Mahasasakham University:ม.ป.ท. 2016.