Cao, Tiantian, and Meimei Song. “Close Packing Theory of Binary System of Fly Ash-Cement With Different Fineness”. International Journal of Advanced Engineering and Technology Research 2, no. 2 (June 8, 2026): 52–54. Accessed June 13, 2026. https://ijaetr.org/index.php/ojs/article/view/109.