Prasanphan, S., A. Wannagon, T. Kobayashi, and S. Jiemsirilers. “Microstructure Evolution and Mechanical Properties of Calcined Kaolin Processing Waste-Based Geopolymers in the Presence of Different Alkali Activator Content by Pressing and Casting”. Journal of Metals, Materials and Minerals, vol. 30, no. 3, Sept. 2020, https://jmmm.material.chula.ac.th/index.php/jmmm/article/view/832.