Salleh N, Puluhulawa I. Enhancement of Hybrid Beam Capacity with Glass Fiber Reinforced Polymer (GFRP): The Experimental Investigation into Metakaolin Substitution Effects. ijscet [Internet]. 2025 Dec. 31 [cited 2026 Apr. 8];16(2):404-18. Available from: https://publisher.uthm.edu.my/ojs/index.php/IJSCET/article/view/18413