Jirabute Kuntreerattanarom และ Prasert Suwanyitaya. (2555) The influence of sodium hydroxide molarity and leaching time on the properties of fly ash-based geopolymer. Kasetsart University:ม.ป.ท.Jirabute Kuntreerattanarom และ Prasert Suwanyitaya. 2555. The influence of sodium hydroxide molarity and leaching time on the properties of fly ash-based geopolymer. ม.ป.ท.:Kasetsart University;Jirabute Kuntreerattanarom และ Prasert Suwanyitaya. The influence of sodium hydroxide molarity and leaching time on the properties of fly ash-based geopolymer. ม.ป.ท.:Kasetsart University, 2555. Print.