Ponsorn P. A Theoretical Analysis Incorporating Empirical Formulas for Minimum GFRP Circular Spiral Reinforcement in Concrete Column Confinement. Eng. Technol. Appl. Sci. Res. [Internet]. 2025 Aug. 2 [cited 2026 May 1];15(4):25417-21. Available from: https://etasr.com/index.php/ETASR/article/view/11445