Syahrul, Syahrul, M. W. Tjaronge, Rudy Djamaluddin, and A. A. Amiruddin. “Flexural Behavior of Normal and Lightweight Concrete Composite Beams”. Civil Engineering Journal 7, no. 3 (March 1, 2021): 549–559. Accessed June 25, 2025. https://civilejournal.org/index.php/cej/article/view/2726.