Yusof Zaki, M. R., & Abdul Hamid, S. B. (2024). A NOVEL APPROACH OF NON-DESTRUCTIVE TESTING FOR W-BEAM GUARDRAIL DEFECT DETECTION USING SURFACE WAVE TECHNOLOGY. Journal of Civil Engineering, Science and Technology, 15(1), 69–77. https://doi.org/10.33736/jcest.5916.2024