Nguyen Hoang Tung, Sok Heang, and Khuc Thien Thanh. “Concrete Elastic Modulus Effects on Cracked Flexural Stiffness Reduction Factor of RC Beams”. JOURNAL OF MATERIALS & CONSTRUCTION 16, no. 01 (May 22, 2026): Page 90 – Page 100. Accessed June 10, 2026. https://ojs.jomc.vn/index.php/en/article/view/1246.