Phuangruangsri, Chatchawal, and Pornpen Limpaninlachat. “Experimental and Evaluation of Flexural Capacity in Voided RC Slab With Internal Truncated Pyramid Shaped Voids”. The 28th National Convention on Civil Engineering 28 (June 14, 2023): STR08–1. Accessed November 1, 2024. https://conference.thaince.org/index.php/ncce28/article/view/2590.