“Study of the Thermal Durability of Refractory Mortar Prepared from Local Clay Mixed with Different Percentage of Silica”, Iraqi Journal of Science, vol. 54, no. 4Appendix, pp. 1096–1101, Jan. 2024, Accessed: Dec. 23, 2024. [Online]. Available: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/12428