Sukkae, Rinyapat, Somkeat Suebthawilkul, and Benya Cherdhirunkorn. “Utilization of Coal Fly Ash As a Raw Material for Refractory Production”. Journal of Metals, Materials and Minerals 28, no. 1 (June 27, 2018). Accessed April 25, 2024. https://jmmm.material.chula.ac.th/index.php/jmmm/article/view/345.