Sukontasukkul, Piti, and Somyot Wiwatpatta. “Moderate Lightweight Concrete Mixed With Recycled Crumb Rubber”. Science & Technology Asia 14, no. 1 (January 24, 2014): 1–9. Accessed May 3, 2024. https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/15859.